Honestly, if you're even considering this kind of thing... you've got issues.
Check out these wedding bands by Sakurako Shimizu. They are molded into a waveform representation of your partner's voice recorded saying "I do," or any phrase you choose. A very cool and unorthodox idea!
For those of you who want the karat count in your diamond to match your maturity level.
Check out these Portal-themed wedding rings by Etsy user 17thbit! Now you're thinking doing everything in your entire life with Portals!
Just try to make sure he doesn't eat the ring. Then we'll have to wait for him to spit up a pellet and then dig it outta there. Ew.
When you wish upon a ring, makes no difference who you... dammit, that doesn't rhyme well!
ryan brenzier on flickr http://www.flickr.com/photos/carpeicthus/552551812/
I hope the wedding cake is not a lie, though.