Okay... just tried some last week. I've been having some issues with my pen tubes staying put in the blanks. After a post on IAP and about a 10 thousand different opinions, I decided to try a tube of Gorilla glue.
I applied glue to the tube, applied water to the hole and set it aide for 24 hours. I have yet to turn it, but, 'HELLO FOAM' My work bench looks like a root beer float explosion. Looks like I may need to rethink how much glue is needed.
Honestly if this doesn't hold the tube in the blank, I will be blown away!