How to.. make a handy little saw

I doubt if this my own idea.. but I thought of it this morning while offering advice on cutting a hole in a cowling. It's pretty much self-explanatory from the photos.. other than securing the blade into the handle; which could be done with glue or a few wraps of filament-tape (which would allow for changing blades of diff. T.P.I.'s) If "gluing-in" the blade.. be sure to clean any rust inhibiting oil off beforehand. The blade is a "coping-saw" type.. and can be easily cut to length using cutting-pliers. You could also grind/file a "point" on the blades end.. for starting a hole in a hard to reach balsa bulkhead. You've probably got the materials already in your workshop to make one. For storage, drill a hole in the other end of the dowel for a screw-eye.. and hang it on your pegboard.