Themes already being used.
Theme songs can be used for podcasts and for web sites.
If you would like a Theme song, send an email to discuss what you would like. (length, genre, tempo, what your podcast is about)
It usually takes between 8 to 15 hours, ($200 - $400) to make a theme depending how simple or complex it is. In the end you get a high quality song you will be happy with.