Last September I posted on clicker training and teaching my mustang to "touch" scary things. After the success I had with him on that, I gave serious thought to teaching him some tricks using clicker training. Juanita had taught her horse to fetch a frisbee and I thought it might be fun to teach Ranger to "sing" on command. First get him to huff after I say sing. Then click, give him a treat. Then have him make a louder sound before he gets his click and treat. Finally a full whinnie on the sing command.
I had to give it up, though. I realized I couldn't teach him to sing because he is always just a little horse.
(And no, you don't get your 2 minutes back.)