Stump Tic-Tac-Toe. This made me think it could be fun to do this on an old tree stump outside that you never got around to removing... leave it in the ground and use it for some awesome outdoor fun! Could also paint it into a chess/checkers board, just put a chair on either side of the stump and violaaa no table needed
with things that are reminiscent of the season, so fallen leaves. name in wood blocks, stars and moon on the clock if it's at night, weight written next to something heavy. length on the ruler, calendar with the date etc.