Daily theme changer

[nursemm05]

Anyone know of such a thing? I did a search and came up with a few but they aren't what I'm looking for. One changes just a few based on time of day, one changes wallpaper based on seconds (couldn't figure out how to change seconds as there's no setting area!) and I think there was one more but that was a while ago this am and I've been asleep since then! I'm looking for one to change the .tsk file daily. Suggestions? Thanks!