You won’t catch any of the Super Bowl XLIII players butting heads with these helmuts on this weekend, but you can still bid on one and help the NFL Foundation, a nonprofit dedicated to the health and safety of sports and youth football.

Bloomingdale’s in New York collaborated with the Council of Fashion Designers of America to invite some of the world’s leading fashion designers to bring their own personal flair to football helmuts. The collection of 48 fanciful and impractical headgear has been on display in the window of Bloomingdale’s 59th Street store in Manhattan and can be viewed online as well. The helmuts are being auctioned off to support the NFL Foundation, and the public has been invited to submit their own design with a chance to win a Bloomie’s gift card and a mini 3-D printed version of their submitted design. Even football helmut design is a participatory sport.