Thanks for the link. Making a trip to the hardware store this weekend!
Cool. If you're doing bladed, make sure you get the blade and open it first to see what size of parts you have to deal with (and decide what battery compartment you want to replace it with - you can buy a common 4 cell holder and rewire it to 3 if you want a shorter one, and switch to AAA if you want it smaller too, or use 1/2 a side of a long 6cell if you want it long but thin, or cut up and use the original if size isn't an issue) and how much of the blade needs embedding when lit. If you're doing it without a lit blade, you've got a lot more options so have fun!