DIY process to copy commercial holograms onto chocolate!  Completely edible -- no dyes or inks used.

Tech Ingredients' video: https://www.youtube.com/watch?v=SoTi0tM4yQ8
Samy Kamkar's diffractive chocolate: https://twitter.com/samykamkar/status/1259173832620830722

Hologram stickers: https://www.ebay.com/itm/100-Huge-1-9-16-Round-Adhesive-Hologram-Sticker-Labels/331178956157

Silver mirror process: https://sci-hub.tw/https://doi.org/10.1080/00202967.1941.11869396
Add a pinch of sodium lauryl sulfate to the stannous chloride primer solution to help the solution get into contact with the plastic surface.
https://www.youtube.com/watch?v=y-4qqcCxD6g

Morphotonix: https://www.npr.org/sections/thesalt/2014/06/14/321816570/holographic-chocolates-look-as-beautiful-as-they-taste
http://www.morphotonix.com/products/

Caswell nickel electroplating kit: https://www.caswellplating.com/electroplating-anodizing/nickel-plating-kits/nickel-electroplating-kit-1-5-gal.html  (Price was already pretty high years ago, and has gone…

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