I saw a tic-tac-toe game online where you have different sized cups, and you can stack a bigger cup on a smaller cup to take over the space. Looked like fun, so I 3d printed a set. The kids have had fun playing with it.
I started my photo-a-day project on September 6th, 2004 on livejournal, transferred it here around 2011. All photos were taken on the day they're posted...