It's T-Shirt Tuesday!

Erin McCarthy

Every week on the day after Monday, we're releasing new shirt designs in the mental_floss store. Today, it's Zeus' Hardware (above). Because even on Mount Olympus, sometimes you need a Phillips head screwdriver.

And that's not all! From now until midnight PST, you can take 15% off your mental_floss store purchase! Just use the code PDAY15 at checkout. (Offer excludes clearance, subscriptions, and package deals.)

Did you know that you can submit t-shirt slogans? Bradley S. from Palm Coast, Florida, came up with today's t-shirt idea. He gets $125, a free shirt, and eternal "I designed a mental_floss t-shirt!" bragging rights. If you have a funny t-shirt slogan, you can submit it here