/cgl/ - Cosplay & EGL

I'm making a Ghostbusters halloween outfit and I was wondering if any of you know how to make and/or acquire the little valve piece that goes on the leg to connect the hose to.

It seems to be a rubber or plastic piece that is sewn onto the leg of the flight suit. I ordered the suit and they don't come with this naturally.

On top of that, I have to dye the belt I got a bit grey. How does one go about dying such things? Do I just soak it in like a bowl of the dye or what?

Oh! And nametag! I want to get an embroidered nametag (black base with red letters like in the movies), does anybody know where I could get this done? Would a local fabric shop or perhaps a Michael's do this? If not...where should I look? Any place online?

Lots of questions but this is the first costume that has been this complex to put together for me (and has cost this much). I normally just shove on makeup and become a zombie.