While quantities last, with every 3 stamps earned on your Castle Card on Sunday, you will receive a dice from the Sirius Dice box . You select a number and we give you the corresponding dice. If you pull a gold die, you can redeem the code in the box for a $70 set from the Sirius website. If you pull a silver or copper die, you get one of the sets we have set aside in the store. If you pull a red d20, you get the free d20.