Could use with sliced logs. Giant Outdoor Memory Game for Kids - What a great way to practice sight words, math problems, matching and more for preschool, kindergarten and elementary age kids! Summer Activity for kids!
Bumi Parahyangan promotional poster and brochure by Rittsu, at Behance. Triangles don& seem to be popular shapes to use in graphic design, but Rittsu executes them well here. Notice the subtle arrows pointing right to persuade the viewer to read on.
Swipe art is good for older people with limited hand mobility. Put dots of paint on the paper or canvas then let the participant swipe with different tools: small heavy cardboard, sponge, flexible brush, the butt of a closed hand, etc.