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Happy Mole Day!

In honor of this glorious unit of molecular mass measurement (or is it for our favorite nearly blind, burrow-loving creature?), we're spreading the mole love!

Celebrate 6.022x10^23 by entering to win one of four Molar Mole shirts and a $60.22 ThinkGeek gift certificate via the form below.

But WAIT! There's more! Increase your chances of winning by entering on Twitter & Pinterest. Simply @ reply @thinkgeek on Twitter with the hashtag #MoleDay or repin our Molar Mole post on Pinterest.

No need to mole this one over; enter by 6:02PM ET today, and you could be one of our lucky winners! the contest has closed! We'll contact our winners shortly.