Here are a few Tubes I have been working on. I use an offset baffled design in some of these calls and really like the way they turned out. The first four have Pre-Ban Elephant Ivory Lip Stops. The Bottom Call has a reverse book matched Wooden Lip Stop.
Canary Wood, Cedar, Butternut, Tulip Poplar
(http://www.timscustomclubs.com/06152009TubeCallsSide2.jpg)
(http://www.timscustomclubs.com/06152009TubeCallsSide3.jpg)
(http://www.timscustomclubs.com/06152009TubeCallsSide6.jpg)
Ipe Tube and Strikers
(http://www.timscustomclubs.com/06212009IpeTubeCallSide2.jpg)
(http://www.timscustomclubs.com/06212009IpeTubeandStrikers2.jpg)