Does anyone have a invitation key for whoa horsie

No sorry, no one does.
Yes, the Whoa-Horsie people sent invitation keys to Design1online, LLC members. When the Beta test version comes out, those members will give out invitations, as I was told. (Members only, I think)
So if you really want to play Whoa-Horsie, you better sign up for Design1online first. Good Luck!!!