i've made bongs/pipes out of:

hollahoops
ceramic figures (both large and small)
goldfish bowls
socket wrenchs
metal plumbing supplies
beer bottles
aluminum cans
drink bottles
plastic containers (other then used for storing drinks ex: nyquil bottles, pill bottles ect)
blow-dart guns
(i have personally seen guns used, but have not made one out of a gun myself)

there's a few more things you can add
slipknotpsycho Reviewed by slipknotpsycho on . Items that could "reasonably" considered to be paraphanalia under the Blunt Ban Philadelphia Bill No. 060345, commonly known as the "Blunt Bill", defines paraphernalia as any item ??where the seller knows, or under the circumstances reasonably should know? that it would be used to ??convert, produce, process, prepare, test, analyze, pack, repack, store, contain, conceal, inject, ingest, inhale or otherwise introduce into the human body a controlled substance in violation of .? In an effort to raise awareness about what these items actually are, here is a list of Rating: 5