Arms: '89 Snake Eyes
Everything Else: '00 Funskool Streethawk

I hesitate to even call this a custom. I took a 00 Funskool Streethawk figure that had been packaged randomly with some vehicle I had purchased off of Smalljoes.com back in the day, and swapped out his arms with some '89 Snake Eyes arms, which were made of much better plastic.
Its as close to an LBC as one could get, though I did touch up some of the silver paint which had started to fade on the Funskool figure.

This figure is used as part of my Squadron Black team, which is a black ops team of troops that missions off the books giving Joe Command plausible deniability.
Killswitch is the teams demolitions expert and has suspected ties to Firefly though those ties have not yet been revealed.

I had an idea for this character in the works for a long time, and there is another custom of him I've since completed.