Oh wow! I really dig your Tiki Melon lol, it's great. All of your responses have sparked some cool ideas. So, I finished my invitations! Instead of mailing them out, I produced some that I could hand to my friends. I typed 'em up, soaked them in tea to get an aged look, and then had some fun with fire burning the edges and making smoky marks

Then I just tied them with some twine.
I got good responses from my friends... except some of them were confused as to where this Tiki room actually was... the party is at my house, lol, I didn't think it would be so confusing. But I think I set a good tone for the party to come!