Here is a "spin" on one I have used:

http://www.kountrylife.com/content/gal1017.htm

Instead of a paper towel tube I used an empty beer can.
Similar to this:

http://asktrapperjohn.com/topics/bucketmouse.htm

      Ken Lewis
 86 Transporter Crew Cab, 60 T-5 Coupe
 http://neksiwel.20m.com/   O2  sensor monitor gadget, my
cars, Vanagon Tech
 http://EB03.20m.com/  Everybus 2003  pictures