Just came across this thread...
The first vial I had made by a fellow I found through eBay who'd made another glass sculpture for my wife. He made the vial shown below per the dimensions I gave him which turned out to be too large. He was not interested in making a smaller one for me. I seem to remember it was about $60.
I made an interesting discovery one day that the luck potion vial was very similar to what's called a separatory funnel used in chemistry.
I found a scientific glass blowing company that would do custom work and they agreed to make one for me for $30. I sent them an exact drawing of what I wanted, but what I got was too short and too fat.
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I found a local industrial glass blowing place in Smyrna, GA. I sat with some old guy with my drawing, and he produced this awful copy which I tossed it was so bad. $70
I then found another local glassblowing shop. I'd first turned a wood copy on a lathe and the owner/instructor made 3 attempts before we had what I consider a good representation. He used the wood copy as a guide for his calipers. $20 each.
This glassblowers primary business is giving classes and teaching folks how to make their own glass items. He's not interested in making more vials.
I also have 1 luck vial from Juno ($30?) and I think I got a memory vial from her ($60 ?). The other memory vials were from a run that Digitizit did years ago, I believe they were around $50 or $60 apiece.
Glassblowing is much more an art than a science - so getting a blown glass item exactly the way you want it can be frustrating. Having the wood model helped immensely.
ATL