Last updated: August 8, 2026· By Seckin Peker

Halloween Costume Idea For Kids

Phil and Lil DeVille From Rugrats Halloween Costume Guide

Identical twin babies who are only tellable apart by a hair bow and a shirt color.
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Quick Answer: The Phil and Lil DeVille costume is a matching twin-baby outfit split by color and a hair bow.
  • Iron On Duck Patch (essential)
  • Diaper Cover (essential)
  • Pink Short Sleeve Tee / Teal Overall Dress
  • Pink Hair Bow Clip
  • Blue or Pink Sneakers

Phil and Lil DeVille are identical twin babies in Rugrats, and most of the show’s jokes about them come from other characters mixing them up. The duck patch and diaper cover are what make the costume read as Rugrats specifically instead of two kids in random baby clothes, and the color split, blue for Phil and pink for Lil, is what keeps the two people wearing it from looking like one costume worn twice. Reruns and a Paramount+ reboot have kept the show visible to a new generation of kids (Wikipedia), while the original fans are now old enough to be the parents doing the costume with their own kids.

Items Total9 Items
DifficultyEasy
VibeMatching Twin Babies
Cost$55-$150

Phil and Lil DeVille Halloween Costume Items

Phil and Lil DeVille from Rugrats Halloween costume infographic showing pink tee, teal overall dress, duck patch, and diaper cover

Phil and Lil DeVille Costume Items

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Phil DeVille Lil DeVille Rugrats
  • 1Pink Short Sleeve TeeBase layer for both twins under the overalls or on its own.
    See on Amazon
  • 2Iron On Duck Patch (essential)Sew or iron this onto the tee or overall. It is a small detail but it is the one that pushes the costume from “baby outfit” to “Rugrats baby outfit.”
    See on Amazon
  • 3Teal Corduroy Overall DressWorn by Lil over the tee. Gives the rounded, toddler-style silhouette the show uses.
    See on Amazon
  • 4Blue Corduroy ShortsPhil’s half of the color split. Pairs with the pink tee.
    See on Amazon
  • 5White Crew SocksCheck your closet first.
    See on Amazon
  • 6Diaper Cover (essential)Worn as an outer layer over leggings or bike shorts, not as underwear. This is the detail that sells “baby” instead of just “kid in a duck shirt,” and it goes over clothing, not under it.
    See on Amazon
  • 7Blue SneakersPhil’s shoes. Any plain blue sneaker works.
    See on Amazon
  • 8Pink Hair Bow ClipThis is the one thing that visually separates Lil from Phil. Clip it to a small section of hair near the top of the head.
    See on Amazon
  • 9Pink SneakersLil’s shoes, matching her color half.
    See on Amazon
Phil and Lil DeVille character reference from Rugrats showing the twins in their matching outfits

How to Style the Phil and Lil DeVille Halloween Costume

The color split is what people notice first. If both twins wear the exact same pink or the exact same blue, the whole point of the costume disappears, since Phil and Lil only work as a pair when someone can tell them apart at a glance. At a party where people only get a quick look, missing the diaper cover is the difference between “two kids in duck shirts” and “oh, they’re the Rugrats babies.” That one layer does more work than any other piece here.

Phil eats bugs and thinks it’s a great idea. Lil finds this disgusting and says so, loudly, every single time. Neither of them changes their behavior because of the other one’s reaction, which is basically the whole dynamic in one sentence.

Decide who is Phil and who is Lil before you shop

Buying two of everything and sorting it out later wastes money on pieces you won’t use. Pick roles first, then buy each twin’s half separately. It also avoids the awkward moment at the party where both kids showed up in the same color.

Corduroy gets warm fast

The overall dress and shorts are both heavier fabric, which is fine outdoors in October but gets uncomfortable at an indoor party with a lot of people. If the event is indoors, skip an extra layer underneath and let the diaper cover be the only thing under the corduroy.

Phil and Lil DeVille Group Halloween Costume Ideas

Excellent Pick

Real Twins or Siblings

Excellent if you actually have twins or two siblings close in age to dress up, since the whole joke of Phil and Lil is that people mix them up constantly. Real siblings playing along with that bit sells the costume harder than two unrelated kids ever could.

Phil DeVille Lil DeVille

Trio Idea

Phil, Lil & Tommy Pickles

Strong trio since Tommy is the de facto leader of the babies and shows up in nearly every episode with Phil and Lil close behind. Someone needs to commit to Tommy’s blue overalls and single hair tuft for the group to read clearly.

Phil DeVille Lil DeVille Tommy Pickles

Group Idea: The Rugrats Gang

Phil, Lil, Tommy, Chuckie & Angelica

Strong group for a family with several kids, since Chuckie’s glasses and red hair and Angelica’s bossy-toddler outfit both give the crowd more to recognize than the babies alone. Recognition depends on the audience knowing the show, but the range of characters covers a wide age range of kids well.

Phil DeVille Lil DeVille Tommy Pickles Chuckie Finster Angelica Pickles

Loose Idea

Phil & Lil with a Generic Baby-Costume Crowd

Might work, but pairing Phil and Lil with kids in generic store-bought baby costumes dilutes the specific joke of the twins being identical. If nobody else in the group is a named character, Phil and Lil just read as two kids in duck shirts.

Phil DeVille Lil DeVille
Lil DeVille standing pose from Rugrats showing the pink hair bow and overall dress costume details

Phil and Lil DeVille Halloween Costume DIY Tips

Building the Look

This costume is cheap to build for both kids combined, since most of it is basic clothing.

  • Tees and socks: check your closet first.
  • Overall dress and shorts: corduroy in the right colors is easy to find at any kids’ clothing store.
  • Duck patch: buy this. It’s small and cheap and it’s the one detail that makes the costume specific.
  • Diaper cover: skip if the kid finds it uncomfortable. The rest of the outfit still reads fine without it.
  • Hair bow: only needed for Lil. Clip it high so it’s visible in photos.

Playing Phil and Lil at the Party

Phil is curious about gross things. Lil reacts to those same gross things with total disgust. Neither one learns anything from the other, which is the running joke.

  • If someone offers candy that fell on the ground, Phil eats it. Lil says “Icky!” and refuses.
  • When people ask who’s who, point to the color: blue is Phil, pink is Lil.
  • Answer questions about diapers with a straight face. It’s more in-character than laughing it off.

Phil and Lil DeVille Halloween Costume: FAQ

Put one person in the blue corduroy shorts with the pink tee and duck patch for Phil, and the other in the teal corduroy overall dress with the pink hair bow for Lil. Add the diaper cover over leggings for both, since that is what reads as babies rather than just two kids in matching shirts.

Rugrats ended its original run decades ago, but reruns and a Paramount+ reboot have kept the babies in front of new kids while their original audience is now the age to bring their own children trick-or-treating. It works well for parent-and-kid or sibling pairs, less so for a solo costume.

Lil’s line about diapers gets quoted a lot: “Where you’re playing, you can stay and go at the same time.”

Both twins are voiced by Kath Soucie, who plays Phil, Lil, and their mother Betty DeVille across the original series and the Rugrats films (IMDb).

Color and the hair bow. Phil wears blue shorts and no bow. Lil wears the overall dress with a pink bow clipped to a small tuft of hair. Without those two details the twins look identical, which is the joke on the show too.

It works best that way. Two unrelated kids can still pull it off, but the whole point of Phil and Lil is that people constantly mix them up, so an actual pair playing along makes the costume land harder.

What detail tells Lil apart from Phil in the costume?

Who voices both Phil and Lil DeVille?

What patch goes on the Phil and Lil costume to tie it to Rugrats specifically?