NBR: Wedding gift suggestions?

crescentmoon99

One of my best friends is getting married in Vegas next month, and I'm trying to think of a gift.  They are having a non traditional wedding, very small and informal (they're being married by Elvis hehe).  They haven't registered, and have asked us not to bring gifts, since we are flying to Vegas for the wedding.  They're a kind of laid back, pseudo-hippy couple (not the pots and pans type).  She's a graphic designer/artist, he's a nurse.  I wanted to still get them something small, but I am just drawing a blank.

When we got married, someone had one of our invitations mounted in a nice frame with pressed flowers around it.  I thought something like that might be a nice idea (although something funkier for them than pressed flowers), but I'm not sure where to get something like that done.  Also, she hasn't mailed the invitations yet (LOL) so I'm not sure I'd even have time.

Any ideas?