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DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Introduction

A Costume for the Budding Artist

As a seasoned crafter with years of experience designing kid-friendly Halloween costumes, I love transforming everyday toys into imaginative outfits. This watercolor paint tray costume captures childhood creativity with vibrant colors, minimal sewing, and low cost—ideal for young artists hitting the town on Halloween.

Step 1

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Print the Pattern and Cut Fabric

The dress pattern creates a garment 24" long, 13-1/2" wide at the armholes, and 20" wide at the hem. Test-fit the printed pattern on your child and adjust as needed. Scale the paint colors, wells, and tray sizes to match. Pin the pattern to yellow drop cloth fabric and cut to size.

Step 2

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Create the Oval Paint Colors

Cut eight 4-1/2" x 5-1/2" pieces of HeatnBond UltraHold and iron onto the back of each color fabric (red, orange, yellow, green, blue, purple, brown, black) per package instructions. Trace the oval template on the paper backing and cut out the ovals.

Pro Tip

If you've resized the pattern, adjust the paint color and well templates accordingly.

Step 3

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Make the Paint Wells

Cut eight 6-1/2" x 5" pieces of HeatnBond UltraHold and iron onto white felt per package directions. Trace the oval paint well template on the paper backing and cut out. Use a craft knife to remove the center oval (save for another project).

Step 4

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Assemble the Paint Tray

Cut two 18-1/2" x 7" rectangles for the front and back panels; adjust if you've scaled the pattern. Round one corner on each to mimic a paint tray edge. Position the paint colors and wells inside.

Step 5

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step GuideDIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step GuideDIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Attach Ovals and Paint Wells

Lay the tray on an ironing board. Peel the paper liner from each paint color oval and iron in place. Repeat for the paint wells, positioning them to slightly overlap the colors below.

Step 6

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Position Tray on Dress Front

Place the assembled paint tray diagonally across the front, from the left shoulder.

Step 7

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Attach Tray to Dress

Sew the tray securely to the dress front. Repeat on the back, aligning diagonally so panels meet at one shoulder.

Step 8

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Sew the Shoulders

Cut white felt to cover the straps and sew in place. Trim excess.

Step 9

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Sew Dress Together

Sew side seams with a 1/2” allowance. No need to hem the bottom or straps—fleece won't fray.

Step 10

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Add Shoulder Straps

Fit the dress on your child, mark strap positions for hook-and-loop fasteners, and sew securely.

Step 11

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Cut and Sew Beret Pieces

Cut two circles using the hat pattern (fits 20" head). Cut the inner donut from one circle. Stack pieces and sew outer edges together, right sides facing out, with a 1/4" seam.

Step 12

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Turn and Press

Turn right side out and press seams with fingers for a puffy shape.

Step 13

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Cut Beret Band

Cut a 23" x 2-1/2" felt strip and sew short ends with a 1/4" seam.

Step 14

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Fold Beret Band

Fold lengthwise, right sides together.

Step 15

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Pin Band to Beret

Pin the band to the inner beret circle, aligning raw edges.

Step 16

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Sew the Band

Sew with a 1/4" seam. Remove pins before stitching.

Step 17

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Add Top Loop

Cut a 2-1/2” x 1/4” strip, fold in half, and hand-sew to the hat top. Stuff with tissue paper for shape during trick-or-treating.

Step 18

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Paint the Brush Handle

Spray pool noodles red and dry. Mask 10” from the top with tape and paper, then spray silver. Remove masking.

Step 19

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Add Bristles

Attach pipe cleaners to the noodle top for bushy bristles.

Step 20

DIY Watercolor Paint Box Halloween Costume for Kids: Easy Step-by-Step Guide

Final Assembly

Trim the noodle ends to height if needed. Your artist is ready for Halloween!