Do you see faces in objects? Different power sockets have different expressions! I had fun thinking up a cute, fun, tug of war scenario as a pun on 'power play' and to utilise the expressions of four different power socket shapes.
Where to buy online
You can find the design on t-shirts in most stores, but also on other products depending on the store (e.g. hoodies, mugs, stickers, notebooks, phone cases, greeting cards, cushions, socks etc).