Amamizu Linda

The manga centers on a club calling itself the "handicraft club," whose members secretly meet in an off-limits and abandoned school building.
One member of the club finds a book in a second-hand bookstore that describes how to make a "doll."
They gather cloth, twigs, sweets, glass, and rain water, and attempt to make something that resembles a human being...
(Source from: MangaUpdates)