Rory was there for a lot of this! Shesnthere to relax, have fun, whatever happens, happens. She made a donation to a charity that promotes music, and a bottle of alcohol for the Morningstars because thats as close as you will get her to worshipping any diety. Pour one out for debauchery.
Roz probably came for a day or two as well just to hang out and have fun. Donations were made to a charity, she doesn't worship any party deity so she probably randomly chose one before and went with something they'd like.