And thus Pluto was demoted from planet to dwarf planet .
(Planet mobile!)And it was all very sad for Pluto who may well have been the most anthropomorphised lump of rock ever, or at least until some wit stuck a black cape on a stone and called it Lord Bouldermort.
(looking from underneath, the material on the frame of the mobile is black with sparkly 'stars'!)
(Close up, going anti clockwise: Mercury, Venus, Earth, Mars, Jupiter, Saturn and Uranus just peeking up)
Anyway, to celebrate Pluto Planet Day, I snuck Pluto into the mobile, it is above the rest, helping to keep the wires to the frame untangled. You can see its location better if you go back to the first picture.
Failing on the last criterion - one of its moons, Charon is half the size of Pluto.
 Notably (at least in my half hour research) Alan Stern
 Just 424 voted. Out of how many no one seems willing to tell me, but I guess you need a couple of thousand scientists to totally get rid of a planet.