No pictures....
...as this was back in the 70s. Dad and I carried an old door we rescued from the dump back to our house, mounted it on hinges horizontally 4 feet up the wall, and built a track layout on it.

Hinge up. Race, hinge down to reclaim space. Nice one, dad.

(He also built an outdoor play structure in the shape of a cube, probably about 6' x 6' x6;. Each face had a different activity - monkey bar, swing &etc. Get bored with one thing? Roll the cube onto a different face and off you go again...)
(Mousy Tongue ...Generally bemused by life..., Sat 19 Nov 2011, 17:49, Reply)