Today, thousands of comic shops and bookstores worldwide are celebrating Batman Day. They’re hosting parties, giving away free Batman comics and in some locations, handing out some awesome Batman masks. Based on four distinct Dark Knight-eras, these masks are fun and perfect for a little cell phone photography. And since Batman has shown he’s not above taking an occasional selfie, we’re putting a call out for some BatSelfies!

Today and for the rest of the week, if you snap a selfie wearing one of our Batman Day masks—or a Batman mask or cowl of your own—be sure to tag it with the #BatSelfie hashtag. We’ll be pulling out some of our favorites and displaying them down below. We’ll also be including fun photos and tweets from today’s Batman Day celebrations. Just tag those ones with the #Batman75 hashtag.

Have fun and happy Batman Day!

Click here to find a participating retailer near you.