Frozen Grapes

When it starts getting warmer out and I'm looking for a healthy snack alternative that will also help me keep cool, I will usually get some grapes, clean them off, and freeze them. Does anyone else do this? They look so weird when they start to thaw!

I especially love when they thaw out just enough for the the outside to get soft, but then the inside is still nice and frozen. And I recommend using red grapes, and the sweeter the better. If you use green grapes, they tend to be pretty sour after you freeze them.