Too funny! I just posted on my Instagram I found a lot of ponies that had the names of the ponies written on their feet instead of the names of the child. This was the first time I had ever seen that
https://www.instagram.com/p/BZhcxTFjBLe/?taken-by=bizzarro_toys
I have some like that. They all came from the same home, I am sure it was done by them. Some of their ponies are also now out in the world from being traded. I have no idea where they are now. Some of them are Macau ponies, one belonging to my sister has Cotton Candy written on the base of her hoof around the edge that touches the floor, then the Cotton has been crossed out, as though they realised her name was actually Candy (which if so, happened about 2 years before anyone online knew about Macau ponies, let alone their names, so that's sort of creepy cool).
My own ones all had my name on, but some have faded out. For some reason Masquerade and Sapphire have it now in weird luminous orange. Who knows what colour that was originally.
Otherwise ponies from a friend had her name,but nothing exceptional here.