Slipknot co-founder and creative mastermind M. Shawn “Clown” Crahan” has announced Clown Cannabis, a first-of-its-kind partnership with Hollister Cannabis Co. and Heavy Grass, the loudest weed brand in the world. The collaboration features special-edition HashBone packs featuring six half-gram pre-rolls with matches, packaged in a soft-touch, matte black case.