Han Solo toy blaster
Drill bit (1/16 inch)
"Hole saw" drill bit (about 1/2 inch)
Painters or masking tape
Step 1: Get your gun
I ordered mine from Wal-Mart and they shipped it to my local store for free. I was worried it would be smaller, like for children's hands, but it was actually a great size, probably even the same as the movie version.
Step 2: Preparing the Barrel
The front of the barrel (where the shot should come out of) is also covered. For this I had some "hole saw" bits lying around and found one that was about 1/2" wide which was a pretty good fit. I carefully drilled out the front of the barrel. When I did this the barrel came off and I thought I broke it, but then I realized it is made to. Probably would have been easier to pull it off in the first place before I drilled it out.
There were a few parts on the front of the barrel that the hole saw bit didn't quite get so I used a pair of pliers to just break off the extra plastic that was left.