I hope you don't get offended at a couple suggestions,I also like to make and sell things and I'm only trying to help.

First avoid the term synthetic when dealing with pot smokers..."the same material that wetsuits are made of" would be how I'd explain neoprene to anyone that didn't know what it was.

Secondly if you could get some decorative artwork silk screened onto your product,it would increase its value, function and make it more eye catching.(fantasy,nature,humor and sci-fi art work)

Like I said ,I like your product and your selling it at a very fare price...just wanted to give my two cents on how to make it easier to sell.
Glugglug Reviewed by Glugglug on . A Bong Fix. I had a bong that was shattered by an ashtray and glued it together with J-B Weld it is water proof and i hear its drinking water safe... it takes 24 hours to dry, doesn't expand, you can break glass before the "weld" will break and it looks somewhat clean. if you can fit the glass together it wont even look that bad.(i think it would look better if i got another try) Heres some pictures Missing Glass Hole Patch Missing Glass Hole Patch 2 Best looking patch Best looking patch 2 Rating: 5