I know it's a kid's art activity: DIY watercolor silhouette. (Stickers on first then paint, dry, and remove stickers.) Still, such a good idea to remember.
Hand Print, Cool looking art project for older kids, Rainy day in the camper?
Inspiration for Silhouette Melted Crayon Art. Stunning Ink Paintings by Marc Allante. Marc is an independent, self taught artist of Chinese and French descent based in Hong Kong.