Theinventors cupboard is the fifth in a series of curious cupboards jigsaws designed by colin thompson what do eccentric inventors keep in their cupboards delve into this puzzle to find out this cupboard must be enormous because it contains all sorts of sizeable machines and gizmos amongst those lurking inside are a bacon converter a bed that explains the brief history of time a solar powered sun bed and the universal love and peace machine add to this a clockwork car a steam locomot