Despite vocal protests from the vampire lobby, today we’re adding two new shirts to the mental_floss store.

“Vampires are a pain in the neck” was the brainchild of reader Hareesh Menon, while Gina Damico is responsible for “Natural Selection: Good things come to those who mate.” For their efforts, each will get $125 (and a free shirt).

Order yours today for maximum pre-Halloween usage. And if you use the code “vampire” during checkout, you’ll get 15% off any t-shirt purchase. This offer expires on Monday, so fill up your cart right now.

Got a brilliant idea for a mental_floss shirt? Send it to flossytees@gmail.com and you, too, might win our money and respect.