Melted Crayon Sun Catchers DIY. On those hot summer days where it feels like you can't find any relief from the heat, turn the day around with a colorful DIY project courtesy of free solar energy! Harness the power of the sun to melt crayon shavings and create these vibrant sun catchers. experiment. kids. science. fair. outdoors. outside. summer. beach. project. activities. easy. crafts. for kids. summer. preschool. decor.