About this horse

I am looking for a small pony - mini or small shetland pony-sized for my grandchildren to play with. Mostly for grooming, braiding, leading, and only for riding before they weigh 40# (unless it is a shetland pony). I have full-sized horses and will also be buying a large pony for my use as a driving horse, but I really want a baby-sitter type personality who LOVES children and won't hurt them (I have to win over the parents of said toddlers to start them on the slippery slope of horse-love so G-Ma has future riding buddies!) The pony does not have to be registered or limited to the allowed height - this is strictly a pet-type home for the little guy/gal (don't care which). The desired age would be young, but not too young - say a minimum of 4 or 5 years old. A good horse is never a bad color - had to pick one and I love Chestnuts!