Hands down - Tostitos dip jars. I use it to put all my broken/bent needles, pins, sharps inside and once it's filled, I hand it off to our junker and he disposes it for me. Then I get another jar and repeat.
I also use the back of my flashlight, has a super strong magnet on it so if I drop a pin, I just run it around my floor until I find said pin and put it back in place.