Fun art project with the kids! Easy abstract painting that anyone can do! Just blob the paint on the canvas in random spots and blend! (would be interesting how students could make different pictures w/ the same colors and same blob positions)
Make these with chalk board paint and then put them up in my classroom so I can write the amazing stuff my children say all day long in them. You could also write classroom rules or welcome messages, instructions, messages to parents, focus wall language.