More multi-pens! The Writers Edge.com has a few multi-pens, most notably a black/red/pencil/stylus that uses pressurized Fisher Space Pen cartridges. If you like the way the Space Pen writes, here's a multi-pen for you, $35. For robust multi-pens, their black/red/pencil Spalding 3 Function Pen (no direct link available) is all brass and steel, for $56. Includes eraser and compartment for extra lead. They also carry a few $20 Quad 4-Way black/red/pencil/stylus-or-green with a personal review from the site's owner.