Holograms on chocolate

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

Tech Ingredients' video:    • Optical Chocolate - Making Diffractio...  
Samy Kamkar's diffractive chocolate:   / 1259173832620830722  

Hologram stickers: https://www.ebay.com/itm/100-Huge-1-9...

Silver mirror process: https://sci-hub.tw/https://doi.org/10...
Add a pinch of sodium lauryl sulfate to the stannous chloride primer solution to help the solution get into contact with the plastic surface.
   • A giant silver mirror  

Morphotonix: https://www.npr.org/sections/thesalt/...
http://www.morphotonix.com/products/

Caswell nickel electroplating kit: https://www.caswellplating.com/electr... (Price was already pretty high years ago, and has gone up a lot since; and the kit has fewer components than it used to. But it does work well.)

Holography Marketplace book -- lots of very practical information for making your own holograms, and good source of suppliers (though many are out-of-business now): https://www.amazon.com/Holography-Mar...

Very good source for mold making supplies: https://shop.smooth-on.com/

Countermeasures against hologram copying. Holograms are often used as a security seal, so making copies as shown in the video could be a problem without countermeasures: http://www.nli-ltd.com/publications/c...

I was planning to talk more about different types of holograms in technical detail, but I think I will save it for a future, dedicated video on making original holograms.

  / appliedscience