Okay, so my Miniature horse Geronimo is not a pony, technically, but he sure is pudgy! He's six years old and about 40" tall. We have another Miniature gelding as well, but he doesn't keep weight on him like Mo does! Surprisingly enough, this little porker is the best horse Houdini I have ever met, and can squeeze out of or into everything! "The grass is always greener on the other side" seems to be his motto, so he'll wiggle his way out of his field and either graze in the front yard or go visit the neighbour's horses to see if they have anything tasty to eat! Sadly this picture isn't a great one to show his barrel-esque tummy but it's the only one I could get to upload properly for some reason.