uhh, that looks so cool.... we have a tonne of neodynium magnets that we use to hold things up on the fridge and simply cause we like the way they behave, then don't have any holes in them though... hmmm I wonder if there is a way to make this work without the holes? Maybe something flat and you attach the magnets to the bottom of it?

If I manage to make it work I will do a post and link it here. The feegles (2 and 4 yrs old) would love it!