The idea here is to have a place where template makers can display their creations.
It is imagined that a download link to a zip file would also be provided, perhaps with a note about how to use the template. (And/or a small text file inside the zip.)
One limitation is the disappointingly small size of graphic this wiki can accomodate. This seems to be about the maximum width.
Something like this:
A first example
Click to enlarge