An Ice Cream Maker. Been making my own Ice Cream for years now and its amazing. The cheap machines which requires you to freeze the bowl is nice, but the one with a heat pump built in is amazing. In 3 hours I can make batches of Mint, Chocolate and Vanilla Ice Cream.
Amazon sells them with the search term "with compressor". I got this one 2 years ago, it's pricey but you can get smaller ones with less volume for cheaper. https://www.amazon.ca/dp/B01FXMW4AS/