I am on the verge of some experimenting myself.
Havent taken the plunge and bought any splenda yet....have been trying to avoid any sweeteners during the first 2 weeks. But now on the second 2 weeks i did catch myself looking wistfully at the box of cocoa while doing my last shop. The exact idea i had was blending it into some whipped cream. Only problem is i just know i will chow down the entire carton of cream if i do

Cheers
Jason