I'd think a child made these, perhaps in school or at summer camp, maybe even as a Mother's Day present, though I have a hard time imagining a mother who would ever part with these! I just can't resist things like this that feel so invested with love and effort--right down to perching a little brown bee (I think it is) on the petals of the big green flower. Arrange them in a vase, or set them on shelves, or use as paperweights, or gift them individually to one's favorite people! 

Largest (green) is 9 1/2" long. Smallest (yellow) is 6 1/8" long. There are a few little spots that didn't get hit with glaze and there might be a tiny chip or two, but none that jump out at all; overall very good condition. Sold as a bouquet!