Target (2nd best store to Goodwill) has foam hands in their dollar section and so I coulnd't resist buying two sets of them.
I wrote on each finger 1-100.
On a piece of tape in the middle of each hand I counted by 5's.
This game is even more fun because he gets to sit on my shoulders to point to the numbers at the top of the door.
(and yes, Andre's ninja outfit consists of black tights with pink hearts on them)

