I started working on a COUPLE of projects while I was injured and hoping for the best. I read on this site (I am prettty sure) about some rubber teepads that could be purchased locally (I believe) that are not the Fly 18 ones. They were thicker and heavier and I believe less expensive. I think it was in a post about not getting cement tees but getting these pads instead because they were not permanent and movable. If that rings any bells. I tried to search it out and hoping it wasn't my imagination. It was a year or two ago, not recently. If anyone knows what I am talking about please let me know.
Nothing is in forward progress mode yet, so don't get excited. IF I get my way, I will make things public. Until then, shhhhhhhhhhhh....
I did some research on that for the IOS a few years ago. There is a manufacturer in southern Wisconsin. Google for relief mats or relief pads. Obviously you want an indoor-outdoor version that is slip resistant when wet. The company I found sold 4X4 foot interlocking sections. I'll google. Hold on...
Linear Rubber Products
5416 46th, Kenosha, WI 53144
p: 262 652 3912
http://www.rubbermats.com/\
Humane Manufacturing
805 Moore St, Baraboo, WI 53913-2716
p: 608 356 8336 f: (608) 356 8338
http://www.humanemfg.com/
I liked products from both of these companies. Anything that will stand up to horse urine is bound to be tough enough!
3/4" interlocking horse stall mats work really well too. They are really heavy so you can just lay them on the ground until you are sure where you want them and no one will want to steal them. They weigh 100lbs per section, 300lbs per assembled tee pad. If the can stand up to horse you know a person can do little harm to them. First time I saw them used was at The Maple Hill course in Mass. they are flexible in design as well. 3 sections make a a 6'x12' tee pad for normal tees and 2 sections make a 6'x8' for short pads or you could go with 1 pad for a 4'x6'.
http://www.flexmats.com/InterlockingStallMatSkids.htm