Secret Sidewalk Messages! // SPYDIY //
131In this project, I am going to show you how to make secret sidewalk messages that are activated by just water!
As shown in the video, the secret sauce is a hydrophobic spray commonly used for waterproofing tarps, tents, outdoor furniture, your dog (don't do this), your grannies underwear, you name it!
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Hydrophobic Spray:
https://amzn.to/3cIrPfN
(Purchasing this item using my link costs you nothing and helps out the channel. Thanks!)
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This project is part of the #Make30in30 event from the Making Geeks Podcast! We are pushing ourselves to produce 30 videos in the month of June! Be sure to head to Donovan's or Shawn's channels to see what they have come up with today!
Donovan at Once Upon a Workbench:
https://www.youtube.com/channel/UCsmM...
Shawn at Geekbuilders:
https://www.youtube.com/channel/UC3J1...
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Patreon http://geeksmithing.com/patreon
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