On Facebook I go by the name Tabby Malone. I primarily use the account for my Ball Jointed Doll related stuff but I am quite happy to talk about Pixar on there too :) Also, I will only add people as friends who send me a message first to introduce themselves.
I can be found in several places on Instagram. My usernames include @lucysroomtoys (Pixar/Disney account), @the_little_cupboard (doll account) and @poppypoodlecake (personal account).