I'm already aware that I can buy a safe glass bong, don't suggest it. I'm making a homemade bong/bubbler.(haven't decided which to go with.) I'm using a three year old never used cylindrical roll-on deodorant tube. Unfortunately I realized after gutting it and burning a hole through it for a stem, that I didn't know what type of plastic it is. None of the stickers had a number or recyclable sign on it. It's extremely durable and rather thick for a deodorant bottle. I'm gonna, of course, use a steel pen for the stem and bowl. My man concern is the plastic. Here's some pictures of it... View attachment 1220992 If I wrap the outside with electrical tape, and also wrap the parts of the pen that will come in contact with the plastic (to prevent it from heating the plastic) will it be safe? Or will the marijuana itself somehow pull toxins from the plastic when I try and smoke out of it. Much appreciated.