3D Crayon Rainbow Canvas

A great, beautiful, and easy craft for kids! Make sure you're providing supervision though since there's fire involved.
Supplies
Crayons (red, orange, yellow, green, blue, purple)
Canvas
Candle (or any other source of flame)

Lightly sketch lines on a canvas to form the outline of a rainbow

Melt the end of a crayon over a flame

Press the end of the candle onto the canvas until a dot forms

Continue steps 2-3 until you get a full rainbow!