Right now there are 122 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Arts, Crafts & Sewing › Sewing › Sewing Patterns & Templates. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.
Brands with the most offers here: McCall, Butterick, Simplicity, Vogue, Vogue Patterns, New Look, FIGS, Klutz. Every item is a one-off, so the stock moves all day and new deals keep arriving.