Crystal ball

I want to take my photography in a more artistic direction; and, one thing I want to do is to buy a crystal ball.  The idea is that you shoot through the crystal ball to produce an sureal effect similar to this picture I found on flickr.

I've been discussing this with a member of my photography club - and he sent me a link to a place that seems to have the cheapest prices on crystal balls.

It's a metaphysical supply web site.  To find the crystal balls, I have to click on "ritual supplies".  They also have a feature, like Amazon, where they suggest other things you might be interested in, such as potions, and magic wands.  I feel like I"m shopping on Diagon Alley.  I've done some searching on my own - and they do seem to have the best prices.

The price of crystal balls goes up exponentially with size - so, I'm going for a 3 inch one.  Small enough to carry around, but not too small.  Now I'll need to figure out a way to support it on a tripod. I've got some ideas brewing in my little brain.