Slipknot’s M. Shawn “Clown” Crahan has teamed up with Hollister Cannabis Co. and Heavy Grass to launch his own cannabis line called “Clown Cannabis.” The collaboration “features special-edition HashBone packs featuring six half-gram pre-rolls with matches, packaged in a soft-touch, [and a] matte black case.” The following was said about the weed: “Clown’s signature HashBone…