Roludom's via Amazon offers the Yiboss Mini Portable Oven with Stainless Steel Lunchbox in several colors (Black pictured) for $42.99. Coupon code "Z9ADOOYX" cuts that to $27.94. With free shipping, that's $15 off and the best price we could find. It requires a 12-volt cigarette lighter plug. Deal ends April 30.