I made some faux frappuccinos for my friend's birthday at work this week. They're actually Starbucks cups, frosted around the inside with chocolate whipped cream cheese icing. Then I cut and stacked circles of cinnamon roll twists inside the cups, and topped them with vanilla whipped cream cheese icing.
Looks like the real deal, doesn't it? Just don't go trying to suck them up with a straw - forks required.