Have you tried your unflavored protein in whatever you like to drink normally? I use Unjury unflavored protein powder that way. I take 2 tablespoons and shake it up with a little water (I just use a small tupperware for it), then I add it to my 30oz glass of whatever I'm drinking: orange crystal light, orange crush powder, sunkist lemon lime powder, grape kool aid water enhancer drops, etc.
I never taste the protein powder this way at all. No chalk, no chunk, nothing icky. And I get 26 grams of protein per drink this way.