Balloon Ping Pong - super idea
tire -----> teeter totter, this is so cool @Mandy Bush
DIY how to make cool cardboard toys for kids! - A toy I will totally make for my future kids!
$5 per set! Adorable and affordable PDF download + instructions for making wooden block
Cute activity board for boys!
Fabric Roads using denim and yellow paint
Sponge towers- cheap and quiet
On The Go Play 'n Snack Tray, too good to be true? $9.95
Cardboard DIY play furniture tutorials.