IMPORTANT NOTE: NO RETURNS. ALL SALES ARE FINAL. PRODUCT IS NOT ELIGIBLE FOR DISCOUNTS. THIS IS NOT A COIN WITH A "?" DESIGN. WHILE WE MAKE EVERY EFFORT POSSIBLE TO MAKE SURE THESE ARE RANDOMIZED, DUPLICATES MAY OCCUR WHEN ORDERING MULTIPLE CHALLENGE COINS. Aliens. Space. The deep ocean. The universe has plenty of mysteries to offer. None as exciting as the Mystery Challenge Coin. Feeling lucky? For only $3, roll the dice and see what's on the other side of the rainbow.   PRODUCT DETAILS Gold-plated or silver-plated