Heart Lock & Key Necklace by Mobtown Chicago Heart Lock & Key Necklace has a rating of stars based on reviews. Qty: 1 2 3 4 5 6 7 8 9 10 Price $10.00 Info Reviews Heart Lock & Key Pendant. Made in the U.S.A. by Mobtown Chicago. Hand cast, heavy duty, 100% lead-free pewter pendant 18 inch link chain. Necklaces Steampunk Leave a Comment Check these out too!