We usually use these balls for a colour posting game, so thought that it may be fun to paint by choosing colours using the dice from the game. This worked well and think it would be a fabulous idea to encourage children with autism to use a range of colours.
We then squirted paint onto paper in a tray, popped a ball in. After lots of tilting and some unpredictable ball movements we had a paper full of little dots. Would be lovely with white paint on black paper for snow!!! (shame I didn't photograph the end result)