Tubeapalooza: Paper towel tube ramps... Taking it to the next level. Raid the recycle bin and give ramp options galore! (paper towel tubes, toilet paper tubes, egg cartons, pie tins, baby food snack containers, ribbon spools...)
Car Tyre Sphere with helpers by Nick Sayers, via Flickr. 32 car tires bolted together to form an amazing outside toy for the kids (and pets). Part of Nick Sayers' Geodesic Spheres project.