Wow I love the bic pens! I would love to do a mass launch of those things! Very creative stuff
The 1-page Plan for the basic "Pic Pen" I believe is still on Art Applewhite's web page. If not I'm sure I have a copy hanging around somewhere.
I buy Bic Sticks by the Gross at Staples Very Cheap. Taking them apart are pretty easy. Sometime the rear Plastic plug has been glued in. for them simple cut off the outer layer and drill or file out the white barrel to fit the MMX-II motor.
Art's version (the original) does not include a recovery device. I've taken the mode a step further Adding a 3/16" section of spent motor casing Motor block with 50-70lb Kevlar shockline anchored to the to the block (in an OD filed notch) connected to the two piece Nose section.
The only part of the Bic Stick that is metal is the Ink Ball tip. a pair of plier make very quick work removing it and the Ink Tube. You will need to clean up a bit of Ink inside the nose pieces but it isn't that much trouble. Don't forget to cut off the clean end of the Ink Tube for use as Launch lugs. I use two pieces about 1/8" long. CA and a touch of epoxy keep them in place permanently. Replace the metal ink Top with the end of a toothpick Magic marker colored black or blue and the model is all but complete.
Art's ingenious Folded Computer paper printed Fins-can is a hoot to make and install on the body tube with just a little CA.
Be aware these little buggers are Really HIGH Fliers, you will loose sight of them at ignition. I strongly suggest adding a 1/2" x 9" Teflon Plumbers tape white streamer to help see the model on the way down. Talc Baby powder the heck out of both sides before the first fold/Rolling to ensure opening at ejection. Nice thing is the Teflon tape Streamer serves as it's own FP wadding
Let me know if the Plan isn't still available from Arts web site or in the files sections of the MicroMaxRockets Yahoo.group I seem to recall adding it to my Odd-Roc's folder there.