Short answer: start from clothes already in the closet, keep the build to 30 minutes or less, and keep the spend at $15 or less. This page has the easy DIY picks, the tonight picks, and the group picks, each with its real build time and cost.
I am a dad. I burned one too many evenings scrolling kids costume ideas, so I built a quiz with 137 real costumes and put the best parent picks on this page. Every pick shows its real numbers before you click.
Answer two questions and get one pick, with its real numbers. This is the same logic as the full quiz, shortened.
Want the full version? Take the 2-minute quiz, free, no signup.
DIY means this: it starts from clothes already in the closet, needs no sewing machine, and finishes in 30 minutes or less.
The pick: Banana
A yellow sweatsuit plus a green felt stem hat. It is the easiest costume a kid will actually keep on, because underneath it is just pajamas.
Yellow sweats, a felt stem hat, and done. Ten minutes from the closet to the front door.
Real numbers: 10 min - $2-5 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideThe pick: Fuzzy Monster
A fuzzy sweatsuit and giant googly eyes. The glue dries while you do the face paint, and it is basically pajamas, so kids keep it on for the whole route.
Fuzzy sweats plus googly eyes. Basically pajamas, so it stays on all night.
Real numbers: 15 min + drying - $8-15 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideThe pick: The Tin Hero
A red sweatsuit, gold duct tape, and a glowing chest light. The chest light is the whole trick: one glowing circle and the costume reads from across the street.
Red sweats, gold tape, and a glowing chest light. Kids lose their minds over the chest light.
Real numbers: 25 min - $5-10 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideNo drying time, no sewing, nothing that assumes a craft store is still open.
The pick: Classic Ghost
Ten minutes, a sheet, a marker. Cut the eye holes small first, you can always widen them, you cannot shrink them. Trim the hem so it clears the ground by several inches; a dragging hem is what trips a kid on a dark sidewalk.
A white sheet and a marker. Ten minutes, and it never leaves the top five.
Real numbers: 10 min - $3-8 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideThe pick: Glow Skeleton
Black sweatsuit plus glow-in-the-dark bone tape, 20 minutes. Spooky after dark and visible to cars, which parents love.
Black sweats plus glow-in-the-dark bone tape. Spooky and visible to drivers.
Real numbers: 20 min - $5-10 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideOne supply list, one build, everybody matches. Budget the time per kid, not per idea.
The pick: Cereal Crew
Each kid becomes a different cereal box: a cardboard front, bright paint, done. 20 minutes and $2 to $4 per box, the cheapest group build on this page.
Each kid is a different cereal box. 20 minutes, $2 to $4 a box.
Real numbers: 20 min - $2-4 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideThe pick: Aussie Dog Family
Blue and orange shirts plus paper ears on headbands, 25 minutes. The grown-ups match the little ones instead of standing around in street clothes, which is what the photos will remember.
Blue and orange shirts plus paper ears. The grown-ups match the little ones.
Real numbers: 25 min - $5-10 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideThe pick: Snow Sisters
One icy blue dress, one pink dress, glitter glue, 30 minutes. The costume two sisters already know by heart.
One icy blue dress, one pink, glitter glue. Sisters already know every word of this one.
Real numbers: 30 min + drying - $8-12 - Easy
Open this costume in Pick My Costume Read the full step-by-step guideIf Halloween is closer than you think, here is the whole build, word for word from the costume guide.
The pick: Banana
Real numbers: 10 min - $2-5 - Easy
You will need:
Answer five questions and get a pick in two minutes, free, no signup. Then try it on your own kid privately, on your phone, with nothing uploaded anywhere.
Take the 2-minute quizOr start from what you already own: check what your closet can build. Browse all 137 costume guides.
More parent guides: what should my kid be · last-minute costumes · group costumes.
The Banana takes 10 minutes and costs $2 to $5: a yellow sweatsuit and sweatpants plus a green felt stem hat on a headband. Underneath it is just pajamas, so it is the easiest costume a kid will actually keep on. The full step-by-step build is on this page.
The Classic Ghost takes 10 minutes and costs $3 to $8: a white sheet, a thick black marker, and scissors. Cut the eye holes small first and trim the hem so it clears the ground. If you can make one store trip, the Glow Skeleton takes 20 minutes and costs $5 to $10, and it glows so drivers can see your kid on dark streets.
The Cereal Crew is the cheapest group build: each kid becomes a different cereal box for $2 to $4 and 20 minutes. For the whole family, the Aussie Dog Family is blue and orange shirts plus paper ears on headbands, 25 minutes and $5 to $10. Two sisters can do Snow Sisters: one icy blue dress, one pink, 30 minutes.
Every pick on this page costs $15 or less in materials. Two of them, the Banana and the Cereal Crew, start at $2. If cost is the whole question, the Cereal Crew runs $2 to $4 per kid and the Classic Ghost runs $3 to $8.
Yes, if you pick a build with no drying time. The Banana and the Classic Ghost both take 10 minutes and nothing has to dry, so they work at 8pm on October 30. The Fuzzy Monster and Snow Sisters need glue or paint to dry, so start those a few hours earlier.