Everyone knows how to play tic-tac-toe, but how do you do it in the bathtub? Easily, if you´ve got colorful Fun Foam, which boasts a remarkable ability to stick to bathtub walls.
Cut the Fun Foam into a tic-tac-toe grid, first use the ruler and pencil to divide a sheet into 9 equal squares. Cut out the grid so each line is roughly 3/4 inch wide.
Cut out at least 6 starfish and 6 minnows, making sure each fits within the squares of the grid.
Wet the pieces of foam and stick them to the sides of the tub.
Pick who will go first. The player with the pruniest fingers gets to go first.