PORTLAND -- NBC's hit show Grimm is offering a piece of memorabilia for whoever shows off the best Wesen transformation face.

Wesen are the creatures in the series who appear human to everyone but Det. Nick Burkhardt (a descendant of the Brothers Grimm) and other Wesen.

A coat made from the scalps of Wesen called Wildesheer was featured in last week's episode, and the lucky winner will be able to wear it with pride.

For a chance to win the coat, take a picture or short video of your best Wesen impersonation and tweet it using the hashtag #GRIMMace.

The contest ends Thursday night. Click here for more

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