Offcenter Forge makes my favorite tongs. I use one of his v-bit, modified into a v-box, they are light and well made. Check on the anvilfire site for a link to some of the suppliers that carry them.
If you use a set of Offcenter tongs you'll let all those ebay tongs go to the collectors.
When I make damascus i use a pece of mild steel flat bar welded to a piece of pipe for the handle, some guys use rebar, it doesn't really matter because the weld and handle get cut off.
I forged a file recently by mashing a piece of tubing from a bike frame onto the tang of the file.