Unique Guest Book Ideas

So, we all know about the guestbook. Usually a hard-covered album. Pages with lines to sign your name and such. Usually joined by a pen in a cheesy holder. Looks something like this...
It's actually quite cute (ok, I guess I fall for anything pink), but it's not 100% my favorite. I wanted to do something a little less traditional. And then, I found the "guest bowl"...
Naturally, it's another Martha project. :) Not sure where I'd find such an extravagant vase, but I'm considering using a fishbowl!
My only concern, though, is that people won't realize it's a guestbook and will bypass it. I guess I could have a big sign that says "THIS IS THE GUEST BOOK - SIGN IN!", but that's a little cheesy. :)

Another unique option is a rolodex!
There are a few options available at Etsy that I adore...
Steve is pretty handy, and I'm a little crafty, so we may just make our own! We'll see how ambitious we are!

Ciao,