Cover Art Question

I know that if I include either a .jpg or .png file with the same name as the movie/video file name, at the same directory level, that the picture will display as the cover art when the file is played. That all works fine for me - as does Cover Parade. However - I have a bunch of short files that all start with the same name: Eli’s Dirty Jokes as a matter of fact. I would like to display the same thumbnail for each of them and sort of thought that I could use the Unix filename wildcards to do this - as in naming the thumbnail file ‘Eli’s Dirty Jokes*.jpg’ or ‘Eli’s Dirty Jokes*/.jpg’. But that doesn’t work. There must be any easy way of doing this. Any thoughts?

TIA, Tuck