It's been awhile, and I wasn't successful the first time I tried, so I still never have done it. But there's a way to change dropdown menu options on a page you don't have access to, and it send it back to the server and it'll still register it.
I've tried to google, but I couldn't find it. All I know is that it involved working offline for most of it, and messing with the source code, but I can't edit the source code and I remember there being more steps anyways.
Anybody know how to do this? It's for a harmless joke. I want to see the look on the site owner's face when it turns up.