Costco Sale: Legendary Doughnuts Gifts Cards 50% Off! by Rhonda July 18, 2020 5/6/16. My absolute favorite doughnut shop! Get two $25 Legendary Doughnuts Gifts Cards at Costco on sale for $24.99, now through May 7, 2016. That is $15 off Costco’s regular price … 0 FacebookTwitterPinterestEmail