Tiny horse
From Tardis Wiki, the free Doctor Who reference
According to the Eleventh Doctor, tiny horses from outer space invaded the Earth in January 2012. They were apparently "so tiddly" that no one noticed them. The Doctor claimed to have given them tiny sugar lumps, causing them to go home happy. (PROSE: The Doctor's Guide to 2012 [+]Loading...["The Doctor's Guide to 2012 (short story)"])
