How about beach bums. Get some floaties for the horses legs a big one 4 you a towel 2 sit on some sunnies for you and your horse and a flower necklace 4 ur horse. And 4 you, you wear like bathers or rash vest and board shorts. And you pony has to be very quiet to do this. I did it on my little pony and we won the fancy dress and at a much bigger show I came second.
A good rider can hear his horse speak to him, a great rider can hear his horse whisper, but a bad rider won't hear his horse even if it screams at him. Millie and Archie my two beautilful ponies.