Metal pipes at Smokers Heaven UK head shop. At Smokers Heaven we stock a wide range of classic quality metal smoking pipes and metal threaded pipes for all your smoking needs. View our wide range of metal pipes with threaded bowls and stems for interchanging fun and easy cleaning. Smokers Heaven head shop stock a range of wooden smoking pipes and glass smoking pipes of all sizes. Browse our unique pipes section where you’ll find only the finest quality pipes such as the Grassleaf maze filtration system one hitter spliff pipe, Budbomb helix filtration pipe, Red Eye SPLIF STIK and A’MAZE’D pipes, the old school Silver Palm Leaf pipe.