It’s New T-Shirt Week!! To celebrate, we’ll be unveiling one new mental_floss shirt each day, and offering a one-day-only 10% discount.

To order yours, head over to the mental_floss store, add it to your cart, and use the code “hobbit” during checkout. (For the women’s shirt, use the code “whobbit.”)

Today’s shirt – also available in women’s fitted – was a joint effort between reader Casey Harris and mental_floss co-founder Mangesh. We asked Casey to tell us a little about himself, and here’s what he was willing to share:

“Casey is a corporate attorney who reads every issue of mental_floss cover-to-cover, if he can wrestle it away from his far-more-intelligent wife, Laura, when it arrives in the mailbox. They have two little boys ages 4 and 1, who keep them super busy and turning to mental_floss regularly for mental stimulation and the occasional sanity check!”

We’ll also be linking back to three stories (somewhat) relevant to the shirt’s slogan. This batch is kind of a stretch:

1. Meet Peter Jackson

2. Quiz: Best Pictures

3. Houses Made of Straw (including one that looks like a hobbit house)

See what else the mental_floss store has to offer this holiday season.