Here's a handy list of all the critters we talk about this week.
Nickname, Species Name, (Individual Name)
“Hammerhead”, Ithorian, (Momaw Nadon)
“Walrus Man”, Aqualish, (Ponda Baba)
“Squid Head”, Quarren, (Tessek)
“Prune Face”, Dressellian, (Orimaarko)
“Yak Face”, Yarkora, (Saelt-Marae)
“Snaggletooth”, Snivvian, (Zutton)
List of Pigs in Space
Here are pictures of Luke, Yoda, Piggy, and Kermit hanging out.
http://www.avclub.com/article/empire-strikes-back-set-photos-show-luke-yoda-hang-214615