I did a search on the forums for mousse recipes last week and found that some people use instant pudding mix and 2 cups heavy cream whipped together. I tried it with a chocoolate pudding mix this weekend, and it worked really well. Everyone liked it, and I'm sure the other flavors would work well also. Good luck! 
I made this chocolate mousse recipe this weekend and it was DELICIOUS!
1 - can (14 oz) sweetened condensed milk
2 square unsweetened chocolate
1 box (small one) chocolate instant pudding
1 cup heavy whipping cream (whipped)
Melt the chocolate squares, add the can of SCM, stir well. Add the box of pudding, stir well until not gritty (about 2 minutes) and refrigerate for 30 minutes. Fold in the whipped whipping cream and refrigerate for 1 hour.
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