Related, "abrasion holography", with great good success for being hand drawn: http://amasci.com/amateur/holo1.html (1995)

Maybe could swap out the pen for a needle?

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evilduck 2 hours ago | parent | next [-]

Something tells me you didn't open the posted link.

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bradrn 2 hours ago | parent | prev [-]

In fact, I believe that the article is describing a reinvention of this technique! Just with a plotter on oil rather than a compass on plastic.

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Sardtok 3 minutes ago | parent [-]

He did it on plastic CD cases, not oil. The oil in the beginning of the article was just for explaining the refraction that happens with the ridges in the structure.

	▲	bradrn a minute ago \| parent [-]
		Ah, whoops, thanks!