Won it in an eBay auction.

Edit: Scoured ebay and amazon to find one at a decent price. This isn't the seller I bought it from, but here's an amazon listing: https://www.amazon.com/Spinner-Sunandy-Novelty-Stainless-Rainbow/dp/B06Y35MKVB/ref=sr_1_8?ie=UTF8&qid=1494545109&sr=8-8