For a moment I thought you were going to say that they made a cake in the shape of a top. I guess if I ever get that kind of custom cake it will have to have to have pegtop on top! Actually, I wouldn't be surprised if silvertop has gotten one like that already.
I have been thinking in making a holiday decoration for my front yard in the shape of a giant top, like those that are very common these days in the shape of snowmen or santas. It would have a motor for rotating of course (probably just precession). I guess the easiest would be of the wire frame type, with lights distributed on the wire, although the inflatable type may be better for a top. Alas, I didn't get to start on this long weekend, so I guess it will be another year . . .