appliance, contraption, contrivance, convenience, gadget, gismo, gizmo
doodad, doohickey, doojigger, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis
