David Billington wrote:
I have an idea for a tool for glassblowing and it could use a small ball
and socket joint, ball maybe 8mm . The joint would need to be able to be
tilted about 15 degrees max each way and rotated and clamped solidly
once positioned. I have seen items that use such a joint but can't
remember where. An off the shelf solution available in the UK would be
great. Any ideas.

Something like this?

http://www.panaviseonline.com/product.php?id=231

--Winston