Xerg, I agree that the two red and black ones on the left are likely tourist toys. Either one of the long ones in the middle may be all right, but it all depends on the blades. In all likelyhood they will have thin, flexible blades made from truck leaf springs. The geometric motifs look like half-moons right? That's common and there's been loads of discussion about them. Like David said, use the search function.
Here are the two threads I mentioned in my PM
http://www.vikingsword.com/vb/showth...ed=1#post38757
http://www.vikingsword.com/vb/showth...ed=1#post41015
The hilt materials vary greatly but usually there is a combination of leather and wood...I would personally stay away from the white metal (aluminium?) one but others may disagree. There was one gorgeous example posted a while ago with very high quality hilt and guard.
The curved piece on the left side? It looks like many things and I can't tell from this pic. Take more pics next time you're there.
Regards,
Emanuel