My trick is to slide a small jewellers screwdriver down between the plastic casing and the pin, and give it a twist where both metal barbs are. Then just slide the pin out. Once you have removed them, use the same little screwdriver to bend the barbs back out again so that they snap back into place when you reinsert the pin into the casing. Alternatively, if I remember, I just borrow the Molex pin removal tool from my lab at work. But where is the fun in that!
If you can fit it in the gap all the way down to the barbs, then yes. It will have to be pretty small though.
It needs something stiff and thin enough to slide between pin & plastic, and a narrow flat head presses the barb in nicely. A sewing needle will work at a pinch but needs more skill. My How-To
Find a metal cylinder thats the same diameter as the inner diameter as the molex plug and drill out the cylinder so that it fits over the plug rather snuggly then courntersink the top. ANd pressu in to the molex. I think I just might make one or buy one. You could sand a brass rod to size and drill it.
are there any diagrams to help you remember which way they go back together? like the atx pins on the power supply
I find that its better to always leave one till last for the color code. I still havent worked out the mb or p4 conector yet.