Hmmmm. Still wish I could see more. This pic is only 62 Kb. The size limit is supposed to be somewhere around 450 kb.
Well, okay, let's see. The green one looks like it could be a modern machine-made. (Maybe made in the last 20 years in Mexico.)
The middle one could possibly be a a modern one which was made by hand -- if it is glass.
For the brownish one on the right I think I see some circular motion which is interesting, but I can't see enough to make a guess. Maybe more views might help. (Also, I better double check to see if this one is glass, as opposed to stone.)