Lady Bird & Bumble Bee Tic-Tac-Toe game - hand paint rocks and a tree stump for a home made outdoor game. Durable, low cost, fun + garden art! More creative ideas @ themicrogardener.... | The Micro Gardener
I wonder if I could convince Adam to build us something like this for the backyard this summer... but it would need a cover. And I think I would fill it with just dirt and maybe we could enclose the sides with something cheap like plastic trellis and put a water table in there. Messy but super fun!