Need some ideas!

Okay, so I’ve come up with this idea for a slightly “different” birthday card. I register a domain - www.happybirthday<person>.com - and then send them a cool little card that just has the domain name on it.

The thing is… Thats where my creativity ends :lol:

What should I have on the mini-website? Any ideas??
One thing I do want to do is have it so the web-page is only viewable ONCE. At the beginning, I’d have a warning saying that it will selfdestruct after being played… and ya…

Also, I want to register the domain from some cheap US company like GoDaddy or something, but have it pointing to my existing hosting. How would I go about doing this? Just register the domain… and then…? Do they usually have a facility to ‘point’ the domain to wherever you like?