For those of you that would like to start tying flies on tubes, these are some tips I had learned over the past few weeks:
1) You don't need an expensive new tube-vise or a fancy tube fly adapter to get started. There are 2 very economical options: The first is "felting needles" in size 36, 38, 40 from Kmart or Walmart, $6.95 per 4 needles. Here is the link (just in case you are wondering what felting needles looks like):
http://www.kmart.com/felting-needles-4-pkg-size-36-38-40-triangle/p-1990000000073645P?prdNo=14&blockNo=14&blockType=G14#crumbWrapper
The second option is "tapered needles", $15.99 per 13 needles, . You can order them from "Canadian Tube Fly". Here is the link: http://canadiantubeflies.com/flytying-tapered-needles-full-kit.html
These are virtually "felting needles" in different sizes. Don't forget to break the sharp tips off, so you won't poke yourself.
2) Get some HMH tubes. They come in 3 sizes ($4.65-$5.85 per pack): Micro, Small, and Large. Micro is good for flies size 6-12. Small is good for flies size 1-6. Large is good for flies size 1/0 and larger. Here is a link: http://www.jsflyfishing.com/hmh-plastic-cut-to-length-tubing
3) You also need: a ruler, a razor, and a lighter. Use a ruler to measure the plastic tube to a desired length and cut it with a razor. Use a lighter to burn both ends of the cut tube, so that they form lips around the tube. The lips will prevent your thread from slipping off the tube.
4) Attach a felting needle onto your regular vise jaw. Insert the tube onto the felting needle and start tying.
You can start tying flies on tubes with just under $20. Give it a shot, if you are looking for something new to try.