Waita Uziga made a chapter where a doll becomes alive, and turns the girl into a doll (1:1 size) version of herself, but the manga is comparable to the Pooh strip from VG Cats.
http://www.megaupload.com/pt/?d=T3QG83F9 [GS Mikami / Vol.19 fragment]
I doubt I'll have time to check for scans of Zenki. But I'll grab it if I see it in any Chinese site.