Keyboard - Typing thing you use everyday.
Philips Screwdriver - Made to insert and remove screws into things.
Flat Screwdriver - Same as above with a different shape.
Dremel or Hand Drill - Makes holes in stuff.
Blade - Cuts things.
I didn't add costs because you should probably already have all this stuff. If you don't have a spare keyboard you can get one at Walmart for $5.