The Star Trek Interactive Tribbles are little balls of fur that purr and make other various sounds when you hold them or pet them.  They also shake if disturbed.

More from the Star Trek Interactive Tribbles Creator, ThinkGeek:

Features

• Cute furry robotic creatures that shake and quail when disturbed
• Two sizes, large (about 12″ in diameter) and small (6″ in diameter), and come in random shades of black, brown and grey
• Is partial to quadrotriticale, but really likes AA and AAA batteries, conveniently included in its velcro-edged stomach
• On-off switch conveniently hidden inside the tribble!
• Guaranteed to have a calming effect on most humanoids ^*

* Sorry, but tribbles seem to have an adverse effect to Klingons

Starting at $14.99

 

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