FINAL SALE. Note that this is a sample sale product and might come with minor scratches, dents or surface imperfections. Discount codes can’t be used for sample sale pieces. Single solid sterling silver POW! and BAM! comic explosion earrings. These large stud earring come in a mixed pair with sterling silver posts and ear nuts. From the Pop Art Collection. Start your day with a Pow!   Jewellery Care Gold plating silver offers a beautiful yellow gold finish that can be prolonged with the right care. Visit our jewellery care guide to learn some easy ways to maintain your gold vermeil jewellery.