Preheat the oven to 350 degrees and grease and flour a bundt pan.
Melt the ice cream to two cups and combine with the cake mix and eggs. Add a touch of milk if the mixture is too thick.
Bake about 37 minutes.
Suggestions: Haagan Daz's Mayan Chocolate ice cream with devil's food cake mix, with hot fudge sauce and drizzled over the top. Ben & Jerry's Cherry Garcia with chocolate cake; rum raisin ice cream with spice cake; strawberry with strawberry cake, etc.
Caramel doesn't work very well, and avoid mixes such as angel food cake.