>It tends to get expensive when you start using custom made ribbons, etc. I think I'll stick to a Pigma pen whose inks are ethanol insoluble or to an old fashioned pencil that neither dissolves in alcohol nor fades in light.<

Indeed pencil is probably the easiest, albeit low-tech, solution.  Standard waterproof marker inks (e.g., Sharpies) are unsuitable, being soluble in ethanol. A label on the outside of the jar helps, but it can come off.

    Dr. David Campbell
    Old Seashells
    46860 Hilton Dr #1113
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That is Uncle Joe, taken in the masonic regalia of a Grand Exalted Periwinkle of the Mystic Order of Whelks-P.G. Wodehouse, Romance at Droigate Spa