Whats the smallest runt has anyone had?

I have one that is almost the size of a pinkie, but has some hair. When the rest are almost on solid food. It's ridiculous how this thing has survived so long yet grow so little.

I added him to a surrogate mother with pinkies so it can get milk. I've also have given him a glucose solution (water and sugar) a few times to try to help the little fella out when his milk band gets small.

I'll try to post some pictures and weigh them up so you can get a better idea. I would of added them now, but I'm in class right now. lol