Homebrew PCBs

All,

I'm trying to track down a PCB prototyping item and need some help.

What I'm looking for are small copper tubes which are intended to be 
used for PCB vias instead of electroplating through holes.  I've used 
them before and think they're great but cannot remember the name of 
the company who sells them.

The are intended to be used like a rivet where one side of the tube 
has a flange and the other is bent over using a special tool on a 
drill press.  However, I find it much quicker and better to simply 
solder both sides to the via pad.

Does anyone know where I can find these?  Basically what I'm looking 
for is some kind of conductor to solder in my via holes.  Wire 
doesn't realy work since it has to be held in place while soldering.  
The flanges in these little copper cylindars worked great for that.

Please reply if you have any helpful info!

Thanks,
Ande