What a fun idea! Your very own "kerplunk" board game brought to life. Let little ones pull out the sticks while trying NOT to make the balls fall. Make it into a math game by counting how many balls fall each turn.

32 Fun DIY Backyard Games To Play (for kids & adults!)

DIY Backyard Ker-Plunk game Take backyard games to a whole new level with a large-scale homemade version of the classic Ker-Plunk game!

Game idea for carnival - flat plates with numbers on them for points.  Link doesn't work...  Use picture for future reference

maybe pain like targets and throw in plaid bean bags (BRAVE) DIY bean bag toss game. Except use pink bean bags with crowns on them.