First off, this method might have already been posted, but if it hasn't, here it is. I know many catfisherman have experimented with surgical tubing for dip tubes. I had the following idea while at Dollar General today and saw Pencil Grips. I got 8 of them, in various colors, for $1.00. A little work with a hole punch and there you have it. I have enclosed pictures of my homemade dip tubes. Hope this helps someone.