I know briar burl is like the main wood for pipe making, what other woods can be used and what can not be used? Was browsing wood date base and assume the toxicity info on that is for working with the wood but not using it like that? Anyways, my buddy wanted me to make him a pipe which sounded like a fun learning opportunity. I wanted to make it out of red or brown mallee burl but didn't know if that'd be a good idea or not. Hard stuff so figured it'd work well, and according to the toxicity thing on the site, didn't seem like much to worry about but I could be wrong and figured I'd ask. Just didn't feel like messing with briar and wanted to use something I had on hand.