80's/90's Children's Anime Birthday Planet
The characters featured in the movie lived in space, on a happy "birthday" planet. They were shaped a little like the Charlie Brown character "Snoopy", except with a rounder, (although it may have been a flat heart-nose) red nose; pink skin; and large eye-whites, with a small black dot to denote the iris (as opposed to some other, googly-eyed anime).
It came on a VHS as a movie, I think (Although it wasn't one movie plot, but rather like a few episodes/stories on this one particular VHS.)
I remember each character was based off a horoscope sign. The "Cancer" astrological sign had cute little crab-claws, an accent, and she was the "sexy" one (comparable to smurfette). These gloopy aliens kidnapped her once to make food for them (I think they were called "glub glubs", or they only knew how to say "glub glub".) Well, they lived on a trash-dump planet, so she felt sad that she couldn't find any items to make food with.
I remember a "Leo" character, too. He was really cool and saucy, and of course, he had a lion's tail.
I think I remember another female character, although this one was ditzier, I think... She found this cute little creature, and she took it home and fed it, but it kept getting huge and was going to eat the village out of house and home, so they had to let it go, but luckily; the creature's momma came along and took it away.
The series/movie focused greatly on birthdays, and celebrations, ergo the title.
I appreciate any help at all!