I think I put in a couple good suggestions for unnamed ponies.
I'd like everypony to vote. Tell me if my ideas are good or suck.
The conductor pony - Horsratio Pullman
Sick pony in "Read It and Weep" - James Colt pun on James Cole, Bruce Willis character in 12 Monkeys
Tomato salespony - Rotten Tomatoes
Caramel pony with three horseshoes - Toffee Luck
One of these has to good.