Soldering jig.

[brian015]

I clamp my wire to a piece of plywood on my kitchen counter (my workbench) with one of these:



I've used various techniques to hold my bullet connector in place while I solder - it usually involves placing the tool that is closest at hand up against the bullet to keep it from moving. Works every time.



(I've used Krylon Fusion more than once to paint Lexan - I've been happy with the results but I'm not going to recommend it to you)




(I've never built a truck for $12.48 though)