The best part about reviewing is that sometimes people give you free stuff so you talk about the stuff they gave you in reviews.
I was given this: http://www.amazon.com/gp/product/B00INRRKBO/ref=cm_cr_ryp_prd_ttl_sol_0
And wrote this:
If I remember correctly, the spice grinder I had back in college was about the size of a quarter on top, and it only had one chamber so that you had to dig your spice out of the wells between the blades with your fingers. That was a while ago, but I know my college spice grinder store had nothing like this.
When I pulled it out of the box, it felt heavy and substantial. It was also bigger than I thought it would be -- like the size of a silver dollar across, and deeper too. I wouldn't carry this around, it is more of an at-home spice grinder. You can grind several recipes worth of spices in one go with this thing. The grinder lid spins but stays shut with a quality magnet and the spice falls through the holes to a second chamber which has a fine mesh floor. There is a third chamber below the mesh that is accessible I suppose to collect the fine dust from your spice. There is also a tiny spatula included to help scrape the spice if it sticks to the blades or leaves any sap or resin behind. Overall, I'm pretty impressed with this product, and I don't even smoke weed.
A complimentary product was offered to me for review.