*Chartpak and 3M make a ruling tape that can curve. Because it doesn't buckle when it is bent or curves it should work. Check in an office or art supply store.
*Pinstriping tape or automotive tape also curves without buckling. THey use it for taping off flame jobs on cars as well as taping off complex surfaces or shapes on cars. This also would work to tape off the conical end.
*Two blocks of wood. Mount the bomb upright or vertical with the nose in the air, this can be done with blue tack puddy or clay. The second block is for a tool rest for the brush. Use a pinstriping brush or a longer bristle lining brush with a good load of paint on it. The second block will line up with where you want to paint the stripe. Turn the bomb block and it will paint the stripe. Sort of like a lathe operation. Just be sure the bomb is vertical.
*Mount the bomb in a drill. The fins should fit in the chuck. Otherwise you have to make a turning block to fit in the drill and attach the bomb with glue to it. Depress the drill trigger slowly so it turns slowly and use the striping brush. If you mount it on its side you can use another block of wood with a finishing nail or pin as a turning center and mount the bomb like a lathe turning.
For one, or two its alot of work and I would use the tape method. But if you're going to do a bunch rig up a lathe, either manual or with the drill. Just go slow.
Good luck
Mike
Mike
"Imagination is the dye that colors our lives"
Marcus Aurellius
A good friend will come and bail you out of jail...but, a true friend will be sitting next to you saying, "Damn...that was fun!"