Mason Jar Madness

Raise your hand if you DON'T love mason jars?  Anyone?  Yeah, that's what I thought.  They're just the most multipurpose vessel out there.  Canning?  Obvi.  Juice glass?  Duh.  Sewing kit?  Made one 10 years ago for college. Cocktail shaker?  Now that's one I hadn't heard of yet... and of course I want one now.