Found this rather fun spinning top tutorial. It's boro, but says it could be done with soft glass if you keep it warm.
http://www.everafterartistry.com/freetoptutorial.htm (http://www.everafterartistry.com/freetoptutorial.htm)
ooo Glenn thems is nice ;D
Really like these 8), never have thought to make a spinning top from glass,
thank you Glen! ;D
Ooo thanks Glenn, I have been meaning to look for one for ages ;D ;D
when I click on it says video unavailable
There is a pdf file though, with lots of piccies :)
She notes at the end that a graphite knob mould is available.... interesting... ;D
here's a youtube
http://www.youtube.com/watch?v=zNAtXmYdb2U