If Link possesses a red shield and the Ether medallion, Link can obtain an "ice" shield that has a blue palette swap in place of the usual red color on the shield. Link must use Ether while a Pinket takes Link's shield and then kill the Pinket afterwards. When Link picks the shield back up, it will turn blue. Using Ether again will return the shield to it's original red color.
Contributed by Kakariko Kid