For what good it may do you I'll post the plans for the freezeplug tool. If you're real good at this sort of thing you might be able to make one for yourself. It seems to me that one time some one here on the forum did make a small batch of them.
Well, shot (you see what self-control I have?). The plans are apparently too large to be allowed here. They're 1.72Mb. If you want the plans please PM me with your email address and I'll send them that way.