Here in Australia, we have something called Smooze, which is several flavours of frozen tetra packs of coconut/mango, coconut/pink guava, and coconut/pineapple, the calories are bugger all, and they taste awesome, especially when you are craving something sweet!
Once my house has stopped being turned upsidedown (been moving bedrooms and study around), I'll try my hand at making my own versions....cheaper too me bets!