So anyway, pee-wee Prince. Hurry up and bring back the glorious starry sky. 

This official Katamari Damacy plush set, designed by Audrey Waner and prototyped by Eyes5, includes the Prince and a Katamari that measures 8 inches (or 20cm3mm, if you're following along in the game's UI) in diameter.

The katamari is dotted with magnets to help you make it bigger and much harder to roll. (The Prince's hands have magnets, too!) 

KATAMARI DAMACY™&©BANDAI NAMCO Entertainment Inc.