Well, now we've seen everything. Meet Hangover Heaven: A bus service offering hydrating, vitamin-enriched IVs that will apparently take you from "I feel like death" to "Let's do some shots!" in a scant 45 minutes. Where can you find this rolling cure-all. Las Vegas, of course.
Assuming you make it back to your hotel after a long night of partying hard on the Vegas strip, the Hangover Heaven bus will gladly pick you up from a number of big name casino/hotels, including the Hard Rock, Paris, Bellagio and Cosmopolitan.
Autoblog, New Vegas bus service to offer hangover cure IVs (video)