I just discovered a website which offers royalty free artwork. Are you familiar with Vintage Printable?
They have a lot of interesting artwork that you probably haven't been searching for, but enjoy seeing and can find some use for, if you use your imagination. (case in point, this blog post) I have always loved illuminated letters.
So pop by and check them out. Lots of easily searchable categories and you're sure to find something that you can either use, or will make you smile.
See you tomorrow