Let me give you a gist of all the tools i have bought in the last week for this project:
Hot Glue Gun
Hot Glue
Devcon Plastic Welder
Dremel stylus
Dremel attachment kit
Rivet gun
White 1/8"x1/8" rivets
Rivet Washers
Light, Medium, & Heavy sandpaper sponges
tailor's tape measure
blue masking tape
4 each of small, med, & large clamps
roll of fiberglass screen
pack of thick air conditioner foam stripping
And for modding my hasbro blaster, I have:
Hammered Silver Rustoleum Plastic spray paint
Rustoleum Primer spray paint
Satin Black spray paint
Matte coat spray paint
Small can of Bondo
(hasbro mod kit is in the mail)
A few more things I need to pick up:
Egg timer (you only have a few minutes to work with the Devcon Welder, so the timer helps.)
Ind. Velcro (white especially, but you might want both white and black)
Crayons (for marking cuts and such)
Xacto knife (if I can't track mine down)
Thin weather stripping for where armor pieces hit other armor pieces to cut down on "clacking"
You're also going to need a drill bit. You can probably get away with using your dremel with the right attachment.
You might also want to consider jewelers files for the "teeth" on the helmet. I'm going to try to get away with just using my Dremel with the filing attachment on low.
If you want, I can take some pictures of what tools I have (I need to do that for the blog anyways). I probably wont be able to get to that until tomorrow night though.