yea its sic i think the one on the web you like is alot of machined parts O.o spaceficly for that build but i know you can make one out of black iorn ! just dont use copper its extremaly toxic when its heated vapors are breathed. bronse works well also!

~Russ~

i made one like that that will fit in the tube of a highlighter once the ink stick is out


actualy ill decribe how its made if you wanna make one
materials
1.grese valve (new) ask at hardwhere store they look like a lil bowl head with a screw off piece at the bottom
2. 3/16 clear plastic tubing
3.drill
4.Vice

process

1.unscrew the lil check valve in the bottom of the grese valve
2.put the lil check valve you removed in the vice with the hollow end up
3.drill till the drill stops going down
4.empty out the filiings there should now be a whole in it
5.put the bigger part of the greese valve in the vice and drill it out to whatever size you like
6.cut the tubing to like 2 inches
7.screw the greese valve back together
8.push the tubing on the lil stem where the check valve was
9.TOKE!

this is the grese valve