ideasbymusic.com don't have a website, sort of, but they did arrange a visit from Google Street maps team, so you can wander about their office and find easter eggs like that red tricycle and the man-eating toilet. The shower might be a man-eating shower too, there's blood there....
In Canada businesses are doing this too, in nmedia solutions have hockey-playing troll-fights as we appear to have visited them on a very casual Friday.
We even found Waldo! He's everywhere inside Adviso ad agency in Montreal.