21st Birthday

[OAC]

Hi,

My friend and I are having a joint 21st next July. We will have just graduated from university in London and wanted to do something in the city that people would never forget.... we were considering hiring out one of those old routemaster buses and having some kind of bar crawl thing on it... does anyone have any ideas where we could get one? or something similar?.. or does anyone have any ideas of things we could do?