I've got a new small sheepskin half pad (have it in pink or blue) between the rolls it measures 16", total length w/rolls is about 20" - made for 14-16" saddles. (retails for $90+) $60
Also have a new blue pony pad - spine length is 19.5, drop is 17". (retails for $25+) $15
Buy both and I'll ship it for free.
Here's a pic of the blue ensemble (flash did not work very good, I see...) Anyways - you get the idea - let me know if that interest you!