Take 4 canvases of each size), paint them a solid base color and add vinyl or stenciled design. stick decals onto canvases, paint the whole thing and then remove the stickers to reveal the wonderful artwork!
Watercolour triangles let students paint paper with watercolors, wet on wet, similar colors. Let dry and cut into triangles. Students pick triangles and glue down randomly, leaving white around each one. Maybe try with black or other color background?
Mount Jewelry - How to Make and Sell, Step by Step, Ideas and More!: Bracelet golden chains, rhinestone chain and silk cord - 2 models step by step! I have some of these rhinestones, maybe with silver chain and another color of silk.