I have been given everything from plain white babygros to tasteful next outfits to chav-tastic branded stuff from the carboot. He wears it all. The funniest are the mini-trainers and designer tracksuit, the practical are the babygros in nice clothes and the separates can be annoying but can be tucked in.
Really, he is sick and poos on it and grows out of it in a month. Who cares if he's dressed as a frilly girl thanks to a mis-informed relative. I have no real interest, it goes in the drawer and when it reaches the top he wears. MIL is happy too!!