Star Trek inspired alpaca tribbles.
According to Star Trek canon, tribbles are native to the 4th planet orbiting the star Iota Geminorum. While they appear as small bundles of fur with no other visible features, they do produce cooing and squeaking noises (our tribbles appear to be silent). Their coloring ranges from white and grey to black, as well as speckled brown, yellow, and orange. According to Dr. Leonard McCoy's dialogue, their only two purposes in life appear to be to eat and to reproduce, and they perform both of these functions exceptionally well. McCoy concludes that tribbles use over 50% of their metabolism for reproduction and that they are born pregnant.