Paint in recycled soap dispensers. The children at Kids Allowed can then dispense small quantities themselves into yoghurt pots etc...encourages self help skills.
How high is your tower? Maths and finger strengthening too... turn over the timer... throw the dice... build your tower using the tweezers .. keep score ... best of three! LH
Painting on a big scale. I like the cable reel as a table...Stomping in the Mud