Yes you can do signatures or art work on rice paper then put it under the glass cloth .  If the rice paper is under the glass cloth it can not smudge when you sqeegee the resin on the cloth. I prefer to put my rice paper under 2 oz cloth .

Rice paper is  bit delicate for lots of exuberant wedding guests to be signing, especially with unknown inks that may or may not be soluble in epoxy. I'd have them sign normal paper, then scan and transfer the signatures to rice paper via a laser printer.

In addition to not having to worry about the ink smearing on the boat, you can artistically arrange the scanned signatures and have the originals available for a second (or third or fourth) try in case something messes up.

Congratulations to you both,

Laszlo

This is a great idea. Be sure to use    

Sorry, big fingers. As I was saying I know both SNCO and  Kearing Brand makes UV resistant archival marking pens, available at art supply stores. Varnish, varnish, varnish, you don't want them to fade....SEEYA Jack 

Excellent ideas!

Laszlo, I was a concerned for the same reasons. I like the solution. Thanks everyone!  I'll give it a go and let you know how it turns out.  

Thanks.

Justin

I guess if the Marriage doesn't work out you can always paint it with Awlgrip.    

   Cut out the piece to be signed, sand it, fit to the boat etc etc. UPS the part to the wedding and UPS it back afterwards.