More ideas from Karl
Carrom Balance Board- I think that it would be really from to see how lng you can balance but this could be a really dangerous game, for example if the player was to fall of they could get injured.

Carrom Balance Board, Natural Carrom Plain so that they can diy customize with paint pens and extra grip tape.

DIY Skateboard Swing by littlebitfunky: 20 minutes with an upcycled skateboard, rope, a wooden dowel and a carabiner! "Big" kids would love this too!

Great idea for barn or playground.DIY Skateboard Swing by littlebitfunky: 20 minutes with an upcycled skateboard, rope, a wooden dowel and a carabiner! Doing this for my kids. when I have them

Make a pallet tee pee :)

Make a pallet tee pee! Another use for pallets and perfect if you don't have a tree in your yard to build a tree house! we can ditch the plastic playhouse!

Marble Run Basic

Amazing "marble run" toy sets allow kids to use interchangeable pieces to build complex Rube Goldberg like systems. that would be awesome!