Help/Info on making custom knobs

[pedaljunkie]

I'm doing a build and was asked if it was possible to make custom knobs for the box.  I'm always up for a challenge and figure almost anything is possible with some elbow grease (or brain grease) 

He has some old heads from some star wars figures that he would like to become knobs for the build.  I have asked around and was told there might be some form of substance (not glue, wise guys  ) that when poured into the hollow knob/head would solidify around a suspended pot shaft and be removable like a regular push on knob.

Any thoughts/ideas/help would be awesome.   If it works, I'm thinking about some .45 rounds for a future project's knobs as well.

[petey twofinger]

if i were doing this i would prolly go with jb weld lite ...

[joegagan]

Hobby lobby has mold making supplies. You can also use epoxy to make his existing heads into knobs using the brass cores  from existing knobs.