These aluminum pens are fun to carry because of their weight. My favorite tool is the Scorby gouge but I can hear it say "nono, not the aluminum" when I go to pick it up. It works fine but dulls the edge pretty fast.
The glueup is red acrylic from Tap plastics. The black is from CSU. The slivery stuff is aluminum. The sticky part is probably the jelly I was eating when I photographed it.