instead of interchangeable just have them all strapped to another wheel being kicked in turn
(
Mehitabel_Itrang,
Tue 15 Jan 2019, 23:24,
archived)
Put them all on separate wheels
Boris kicked so hard he spins round and his feet go into Mogg, etc
Perpetual motion
(
97800,
Tue 15 Jan 2019, 23:41,
archived)