Great Holiday drink. I use those 7 1/2 inch cylindrical bud vases you can get at WalMart, Michaels, etc. for maybe a buck or so. Chill them in the freezer and the grenadine works better. You do have to work fast, though.
Wow! Tasty & festive-looking! I certainly impressed my Christmas guests with this one. I didn't quite master the grenadine twist but that didn't affect the flavour. The only danger is that you can barely taste the alcohol!