Here it is:
http://i456.photobuc...54/100_0134.jpg
http://i456.photobuc...54/100_0135.jpg
You will need :
A Nerf Titan
Drill
Screwdriver
Toy lightsaber(cheap one at Rite aid will do the trick)
toilet paper holder bar
e-tape
Step 1: Remove a/r from titan
http://www.darkwhysp...itan-mod-12.jpg
Step 2: Remove the two smallest parts of the blade from the lightsaber
cut the nub of the end of the smallest part so you have an empty tube.
Step 3: Take the Smaller end off the toilet paper thing, and don't break it. YOU NEED IT!

Step 4: put the smallest half of the toilet paper thing ofer blade part one for a sng fit. tape them to gether to make it airtight. It should look life the bottom tube in the picture.
http://i456.photobuc...54/100_0135.jpg
Step five make sure blade part two will fit over the white piece snuggly.
http://i456.photobuc...54/100_0134.jpg
Step 5: Place dart in here
http://i456.photobuc...54/100_0138.jpg
Step 6: put blade piece two over the main part ( toilet paper thing and blade one piece.)
Step 7: put the smallest end in your titan.
http://i456.photobuc...pg?t=1224636275
pump 20 times and fire