These beautiful postcards at Make It Your Own are a fun and interesting way to explore watercolor and glue resists. The post shows other watercolor experiments too, so find your favorite or try them all. As a bonus, you'll have homemade cards that everyone will love!
Roofing felt is new to me but after reading the description and seeing this gorgeous Georgia O'Keefe flower art I'm ready to give it a try. MaryMaking has all the details plus more artwork created by Kindergartners through fourth grade students.