Rabbitfolk
Rabbitfolk, also known as Bunnyfolk are, as their name suggests, a kind of beastfolk based on rabbits or hares. Rarely seen in the /tg/ medium, except in games where beastfolk in general are present, threads dedicated to them occasionally pop up in /tg/, which is as good enough reason for them to have a page on here as any.
Rabbitfolk have no one universal depiction, but the closest thing they have to one is as, essentially, the non-evil analogue to ratfolk. Rabbitfolk are usually envisioned as fairly humble, down-to-earth people, concerned with growing crops, raising their extensive families, and generally cute underdog sort of race, ala halflings.
That's not to say this is the only model one could cast them. Rabbits are associated quite strongly with trickery, cunning and speed, and any of these aspects could inform a rabbitfolk race; footslogging nomads with a shady reputation, ala Dark Sun Elves, or replacing gnomes as the "magical but amusing" race. Or there's the obvious lewd slant, with rabbitfolk being synonymous with carnality, rightfully or wrongfully stereotyped as a bunch of horny bimbos and erotic slave-fodder... hey, it worked for the Twi'leks!
Other mythoses have interesting angles to borrow from as well. For example, in Asia, there's the story of a rabbit who lives on the moon, which in Japan in particular is said to produce the elixir of immortality for the gods; rabbitfolk as a mystical and mysterious race is definitely a viable option. Heck, that's what the Soratami, or Moonfolk, of Kamigawa are in Magic: the Gathering!
And villainous interpretations of rabbitfolk aren't impossible either. Perhaps the best example of this that's even somewhat /tg/ relevant are the Shin'hare of Hex. Based on a combination of Imperial Japan, Communist China and North Korea, these hyper-aggressive little bastards seek nothing less than the conquest of the world, exploiting and exaggerating their legendary fecundity to drown their enemies in bodies and blood. Avid practitioners of blood magic, dark druidism and necromacy, they breed children by the hundreds just to kill them at birth in order to empower blood magic rituals that create enchanted arms & armor for their elite warriors! So you can just imagine what they think of other races... or you can look at the shroomkin, a docile and dimwitted race of mushroom people that the shin'hare enslaved: they work them to death, drain their souls to fuel black magic rites, eat them, use their skin for leather, use them as walking targets and beasts of burden... yeah, not so cute, are they?
And that's just scratching the surface. Using rabbit-monsters as the basis offers greater potential. For example, flying rabbitfolk based on skvaders, or carnivorous rabbitfolk based on al'miraj.
Perhaps the best /tg/ gameline with which rabbitfolk are associated is Teenage Mutant Ninja Turtles & Other Strangeness, due to the association between that series and Usagi Yojimbo, an Japanese Low Fantasy comic series that just happens to feature a badass rabbitfolk samurai as its hero.
Ironically, the most famous game to feature them is actually /v/: Final Fantasy features the Viera race, who are basically rabbitfolk amazons with a dash of elf; unlike your standard rabbitfolk, they are quite long-lived (averaging 300 years) and also courageous warriors who blend magic and martial skills. They star in Final Fantasy XII and in the Final Fantasy Tactics spin-off.