[Charlug] Can I set the label or UUID of a vfat filesystem?

[Pierre Abbat]

I have a thumb drive and a camera memory card. I'm trying to edit /etc/fstab 
so that both of them will mount in their proper directories. The thumb drive 
has a volume label and a UUID; the camera has neither. Is there a way to set 
them without reformatting the filesystem? I checked man mkfs.vfat, and there 
is a -n option for setting the label, but it also rewrites the filesystem 
from scratch.

Pierre