Online Jewelry Shops: To compete against online cufflinks specialty sites, many jewelers have an established online presence. Simply google your favorite jewelry designer (Tiffany's etc.) to check them out. eBay: A great source for unique, vintage or one-off cufflinks. Unfortunately the website is flooded by international sellers, selling very cheap items in bulk quantities, so take your time to look around for intersting options. etsy: Lots of boutique stores that sell a variety of hand made cufflinks. They are usually much "cooler" than cufflinks from the big stores above, but given that they are "handmade" they are sometimes of a lower quality.