Yes Brian, just what we did in the late fifties and early sixties. Rummage through numerous sheds and garages. There were about eight of us, so there were seven sheds (My father and brother were engineers, so I wasn't allowed in what was a 6X8 ft garden shed at what they were up to!) But yes we came up with some weird and wonderfull carts, some with steering, but none with brakes other than the soles of your school shoes/plimsoles, or sandals! And if your shoes were damaged at all it was a smack of the ear and detention and no pocket money for weeks on end!
What the current generations are really missing in the rough and tumble (to often) of 65 years ago!