Another idea is to write/e-mail companies that make protein powders and ask for free samples. You may also be able to get samples at nutrition stores and hospital pharmacies (esp. those with a bariatric surgery center).
Everyone has his/her own preferences and reaction to protein powders and drinks. Did you know that you can get a sports drink-like protein drink (like Gatorade)? Also, Pure Protein makes a 35 g canned shake.
Do your research on protein, though. I think the USDA/FDA guidelines are way too high in protein (meat and dairy industry) and carbs (Monsanto...), Too much protein can cause kidney problems among other things.