1 Use Crayola Scissors to cut a large, wavy-sided rectangle out of colorful or wavy-lined paper.
2 Cut several wavy lines across the inside, going in the same direction as the long wavy edges. Leave a 1-inch (2.5 cm) border on all sides. Make your slits at least 1/2 inch (1.25 cm) apart.
3 Cut several 1/2-inch (1.25 cm) strips from contrasting paper. Weave the strips through the slits. Alternate weaving over and then under. Continue weaving until the space is filled with bright designs.
4 Trim off any strips that hang out from your original shape. Use tiny dots of glue to hold your weaving in place. Air-dry the glue before you wow your friends with your optical illusion.