Donuel... the fire piston that I assume you mean was posted by Rapaire back in Jan.

I had never seen one before...but I am fascinated, because the wood used to make the one shown is TulipWood, one of the Rosewoods. (Dalbergia frutescens or Dalbergia variabilis )

I just may have to see if I can make one of it or some relevant wood.