Great DIY funnel activity made out of pvc connectors drilled with suction cups attached so it can be set up on a window or bathroom wall. Could make a permanent version screwed to a wood backing. Could make it more colourful by covering the PVC with duct tape first.
Water wall Love this. Also like the idea of something that is changeable.more flexible. But using wood is appealing and the water stays against the "wall" so it has the thrill of movement w/o getting children very wet. That's appealing.