Step 1: Materials and Tools
6' long dried cabbage stem
Clear plastic spherical Christmas ornament
LED flashlight or similar (I used this little 9 LED one from DealExtreme)
Wire, solder, paint, polyurethane, strip of cloth/leather
Drill with a variety of bits
Hot glue gun
Step 2: 6' #%&*! Cabbage Stem?!!
Step 3: Protect the End
Step 4: Prepare the Cabbage
Step 5: Add the Flashlight Head
Step 6: Add the Battery Pack
Step 7: Add the Switch
Solder the remaining wire to the top of the battery pack (check your polarities first), then push the battery pack in so the other end is pushed firmly against the aluminium body of the switch. You should be good to go - fire it up! If the fit isn't tight enough, add layers of tape to the wire end until it is.
Step 8: Make Orb
Step 9: Finish
Step 10: Brandish at Halloween
Thanks to Caitlinsdad, who had the excellent idea of adding the plastic bugs!
Step 11: Another Prop - Same Idea, Different Application
Anyway, given what I'd learned from making the staff, it was an easy build, and by 3 pm, it was done and spray painted. I'm not inclined to write a whole instructable, but I've gotten into the habit of snapping photos as I go, and attached to this step are lots of photos. Basically, the blaster was made from scraps, the same kind of flashlight as the staff uses, and some PVC fittings as a scope. The pushbutton switch has been repurposed as a trigger. My son thought it was awesome, and despite the rushed job, the blaster looked great out trick or treating - and of course served as a handy flashlight.