Other than using Godiva Chocolate liqueur and Creme de Cacao, you could use whiskey, vodka, rum, or Bailey's Irish cream instead. The alcohol is quite strong and the flavors aren't subtle so if you're going to be substituting, omit one or both kinds of chocolate liqueur. During the holidays, try using classic Christmas flavors, like orange (orange and chocolate are amazing together), cherry (chocolate cherry, yes please), and peppermint (because, mint chocolate).