Very cute photos, This looks like it was taken at a daycare or preschool. I recognize the mat on the floor with the building on it. I had one for years, came from a school I worked at in the 1980's, Children would put their cars and trucks on it and pretend to be driving all over town. Looks like your pleos had fun with all the balls, it is the colors that brought out the singing songs, just the right combination. LOL
As for socks Teddscau, I have no problem finding the right size here where I live and they are pretty cheap, sometimes 3 pairs for $1.99. If you look just right you can find preemies or newborns that do not have the high what I call, "ankle" so they do not come up so high. Look in better department stores and you have a better selection.
RWM