Looks like this show has been out for a while but stumbled across it just now - Dolly Variety is a show where dolls are the stars played by voice actresses/actors such as Minako Kotobuki (Tetsuwan Birdy, Minamike, Manabi Straight and K-ON! as Mugi-chan), Aki Toyosaki (Nogizaka, Kobato, K-ON! as Yui-chan) and Takuma Terashima (Kaicho wa Maid, Baka Test, Durarara).
Its actually quite interesting ^^; The voice actress/actor does a brilliant job.
Would be good to get one of these K-ON! girls on the next show of Culture:Japan and do some doll talk ^^;