Plastic Grinder Holds Up A Car! - Herb Saver Review Well that was unexpected!!!!!! Todays review is on @herbsaver's Plastic grinders. They cost $10 to $15 and give people an option for a cheap grinder that does a lot of the stuff the more expensive grinders do and when it breaks or you lose it, its only $15 for another one! I really hope you all enjoiy this review and are looking forward to the opening of The Pacific Circle tomorrow! Cheers <3