Originally Posted by jonutarr
Get one of the guitarist to play bass
This is exactly what I would suggest. A good guitarist can pick up the bass easily. Or maybe a keyboardist who can add some low end or an effects processor on one of the guitars to add bass.
In high school my friend who played guitar and I went through a lot of bass players. But that was in Seattle and we could always find someone in a pinch. Nobody seemed to work out long-term, though. We also tried a couple different singers before my friend decided he could handle vocals and guitar.
Anywhere you live, it seems guitarists are the most abundant musicians, followed usually by drummers. Nobody wants to play bass because of the perceived lack of glamour and nobody wants to sing because it seems like it would be the most difficult and embarassing to do in front of people.