I know you're asking for recipes, but the best thing to do is find a standard creme brulee recipe and then play around with different ingredient combinations for the flavors you want. I used to run a trio of brulees at the hotel, but cannot provide the recipes because I lost them all in a fire. The trio I ran was Chocolate, Citrus (combo of lemon, orange, & lime), and mango. For the mango, I replaced some of the cream with mango puree, and had to be careful with the citrus because of the combination of the acids with the egg yolks.
Best bet is just to play around with your adjustments until you get the flavor and texture combination you want.