I'd love some more novelties, however when I think about it it'd probably be quite hard to come up with any more than you already have - only thing I can think of that could potentially work would be like a rough rendition of the hotel itself,
Like this but obviously not in full detail, skip the small details like windows etc and just keep the general shape and colours; the Hotel is sort of flat too in a way, long rather than tall, so it could potentially look kinda cool on like a shift key or tab or something.
I haven't the slightest idea of how realistic that would be, I have zero experience designing anything like this, just a thought.