Style chooser

I made one myself at home ,
i think it works not bad ,

material = plastic bottle , gas hose < i'am using 9mm transparent type > and sponge like thing that you often get when buying delicate items like computer internals ,

well still i wonder what is actually inside of a real oil catch tank
< the truth is i asked some big tuning expensive car shop and they told me inside was empty >
hmmm .....

and my one , i notice that oil in black begins to clog on the sponge where i insert some...