I was going to suggest dancing around naked
but Aberracion beat me to it, sooo...

Try 3 varieties of cheese that you've never tasted before.
Climb some trees, preferably in a public park, and alarm passers-by by hiding amongst the leaves and making gibbon noises.
Read a good book.
Read a bad book.
Busk with a kazoo and see how much money you can make.
Discover a new species of invertebrate.

Alt Q: assuming deceased musicians can be resurrected for the purpose of fantasy, on the main stage would be The Who, Jimi Hendrix Experience, The Doors, Pink Floyd with Syd Barrett, Hawkwind, Quintessence, Black Sabbath, Deep Purple (either 'Mk I' or 'MkII' lineup), The Beach Boys, Hooverphonic, Ozric Tentacles and possibly King Crimson if they promised to stick to the early stuff.
I'd also have a blues stage to host John Lee Hooker, Muddy Waters, Howlin' Wolf, Otis Rush, Koko Taylor, Ian Siegal, Peter Green's Fleetwood Mac, Joanne Shaw Taylor, Billy Boy Arnold, Byther Smith, Albert Collins, Johnny Winter and others.
Jazz stage: Oscar Peterson, Grant Green, Louis Armstrong, Benny Goodman, Grappelli & Django, Ella, Nina, Miles and several others whose names escape me.
Acoustic tent: Son House, Bukka White, Leadbelly, Mississippi John Hurt, Emily Loizeau and possibly Bert Jansch.
(LongJohnBaldry, Wed 30 Jun 2010, 10:53, 1 reply, 16 years ago)

I will place my booking now
If you can get Screaming Jay on the blues stage
(Bonzodog29 is an unemployed sponge of the worst kind, Wed 30 Jun 2010, 13:14, Reply)