In the third X-Men movie The Last Stand, James Marsden (who plays Cyclops) wears Oakley Penny sunglasses. 

Oakley Penny sunglasses had limited availability, now only found on eBay. Due to the limited availability of these sunglasses, prices of the Oakley Penny sunglasses might be higher on eBay than the suggested retail price of $425.

Similar sunglasses by Oakley are the Romeo (seen in MI:II) and Oakley Juliet (seen in Black Hawk Down).

Reference: Oakley Penny X-Metal Ruby Iridium