Okay, so I've looked for some "fill your own" hourglasses, and holy crap they are over $100. I'm thinking about making 4 hourglasses and filling them with colored gems, or stones like what you put in a fishtank or something. I want to make the points hourglasses from Harry Potter, I just can't think of a way to make them that would look good, but still be pretty cheap (and preferably, not fragile x.x) any suggestions ladies??
ETA: the hourglasses are for show, not function if I make them how I want I'd just fill the bottom with some, and then the top with some and close off the middle