Me and my mate as ponies! I asked him what his cutie mark would be if he was a pony and he said (as I thought) a video game controller. I picked a Nintendo one even though they are pretty old... I thought it would look best with his color scheme.
EDIT: Because some misinformed person commented... the beige mark on his leg is NOT TESTICLES
. Jeez. His actual fursona is a fox, and he happens to have a beige chin/throat/belly and inner thighs.[link]