I needed a carrying case for my multimeter + screwdriver set. I saw this cd case on sale and bought one. Its modular so you can customize it to your needs.
Tools and materials needed:
Hot Glue gun
Hobby knife, scissors or something sharp to remove cd holder from inside
Some sort of protection. I used packaging foam, you could use some piece of fabric
Optional:elastic band, to stop parts on inside from moving around
Step 1: Gut It Out
Remove cd holder from cd case. My was sewed to the bottom so I simply removed it with hobby knife. Yours may vary.
Step 2: Add Protection
I hot-glued the packaging foam inside case, to add a bit of protection to inside area. I am sure that I will drop it sometime so this is thinking ahead
Step 3: Use It
You can use it for your multimeter, wires, small parts, screwdrivers etc. You could also add elastic band inside to stop parts from moving arounf