I've got a bunch - also a great gift idea for the holidays!
These are so well made, wonderful thick stretchy non-pilling fleece polos from EOUS. EXTRA LONG! 5" wide x 11' long. Cut excess if you need to - these will fit just about any horse out there! $15
I am starting to make polos of my own -- special ones with bling :) I just wanted to bookmark this so I could respond later today when my first sample is done.