There's a mental_floss shirt for everyone on your list! And today only, if you use the code BUSTMYDOOR, you can get them for the ridiculous, practically 50%-off the regular price of $12.59! (Shirts were already marked down to $17.99 without the code.)
And our Cyber Monday savings fun isn't limited to t-shirts. Get 30% off smart gifts for brilliant kids.
Head over to our store and check out our gift guides to ensure you find the perfect gift!