Brass parts for fabrication/jigs

I dont remember where but...
 
 I saw that someone had machined brass into 4link bushing shaped pieces, to use while welding the 4link bars and control arms while in a jig. it acted as a heat sink and to use while the parts were in place on the project and doin other welding. I keep trying to think of the website and ive googled a lot already. it was a minitruck shop i keep wanting to say it was like guilty by desgin or something along those lines. (guilty by design doesnt have projects or that specific product on their site just the name is similar to who I CAN NOT think of)
 
Anybody have an idea to what shop in the minitruck market builds vehicle and this tool for fabricating?
another thing i do remember that they did either lazer or waterjet cutting work too....