Use Newegg coupon code SMKCPRM25
Newegg has this Toastess TWT-30 Silhouette Cordless Warming Tray on sale for $39.99, but you can get it for $29.99 when you use the coupon code. It says hot for 60 minutes after unplugging. The same item sells at Amazon for $44.99
with great reviews. Shipping is free.