Touch up paint for plugs?

[Rubber Robin]

This topic has probably been discussed before, but what do the people in the know use for touch up coloring on a well worn plug or diver?

Testors model paint?
Felt pens?

I am looking to spruce up some of the old reliables. :grin:

[Fishen Fool]

If they are messed up from teeth marks etc. leave them alone!!

[Fishin Magician]

Ditto-- If its working there's a reason. If you want I will trade you brand new ones for those chewed up ones........
John