Get Dad something fun for Father's Day. Head over to the mental_floss store, fill up your cart, and enter the code "fathersday" before checkout to get 15% off.

I may be completely biased, but I would be blown away if my daughter gave me something from the mental_floss store. Sure, she's not quite two and any e-commerce activity would be alarming. But still.

Hurry! Offer ends Tuesday at 11:59 p.m., EST. Discount does not apply to subscriptions or package deals.