You can get a low quality plastic one on amazon for $3, a low quality metal one for $5 or a high quality one on amazon for $15. I have the chromium crusher I've had it for YEARS.

A decent metal grinder will last you a lifetime. You don’t have to go super expensive but for the love of god don’t get a plastic one. The first time you grind up some real sticky icky the teeth will break.

You’d be just fine going with something like this

Chromium Crusher 2.5 Inch Zinc 4 Piece Tobacco Spice Herb Grinder - Gun Metal Color https://www.amazon.com/dp/B00700W0TW/ref=cm_sw_r_cp_api_i_lKPICb76P5EVH

Here you go: http://www.amazon.com/Chromium-Crusher-Piece-Tobacco-Grinder/dp/B00700W0TW/ref=sr_1_3?ie=UTF8&qid=1453801357&sr=8-3&keywords=4+piece+grinder

Chromium Crusher 2.5 Inch 4 Piece... https://www.amazon.com/dp/B00700W0TW?ref=ppx_pop_mob_ap_share

http://www.amazon.com/Chromium-Crusher-Piece-Tobacco-Grinder/dp/B00700W0TW/ref=sr_1_3?ie=UTF8&qid=1453801357&sr=8-3&keywords=4+piece+grinder

Best grinder I've ever had. It has lasted me more than 2 years http://www.amazon.com/Chromium-Crusher-Zinc-Piece-Gunmetal/dp/B00700W0TW