Fun idea: If you don't pick something up after one warning, this mom confiscates it and puts it in a "ransom box." The only way you can get it back is to draw a task from the envelope attached to the box lid. Her tasks are hilarious!
Bubble Painting: Simply have the kiddos blow, and blow and blow until they have a huge pile of bubbles. Next press the paper gently into the bubbles allowing them to pop on the paper. Repeat the process with as many colors as the kids want. The end result is amazing.