Sinister Silver Co Gift Card For All Occasions One Stop Shopping. Can't decide on the perfect gift? Don't know a size? Just grab a gift card and we will work with your special someone to get them something that's just right! It does not get more easy. Multiple amounts (denominations) for every need. We can also send an email to your recipient of choice with your note attached to make a special moment. Easily redeemed. Gift cards are non-refundable. Can only be used to purchase from Biker Jewelry Club and Sinister Silver Co. Can be used for a custom order as well. Thanks.