"perpetual motion machine"

Mugs

£14.99

MugPerpetual motion sockets

By Shirt-Inovation

£14.99

MugJamnk Aquarius Abstract

By Artistic Panda

£19.99

Full Colour MugInfinite Energy - Perpetuum Mobile

By yippeee

£19.99

Thermal mug with handleSave energy

By erinome

£19.99

Full Colour Muginfinite energy wind turbine fan

By Funkyshirts