Mythbuster "Shock Patch"

[Toxin]

Okay, anyone who watches Mytbuster on a regular bases will know what I'm talking about.

 

They are , very often, using so called "shock patches" which have a red paint capsule which will burst under a certain ammount of pressure. Now this are usually used for postage, but I have not found one.

 

Could someone tell me if those are even commercially available, and if yes, where?

[TheVirus]

http://www.shockwatch.com/shipping_handling_monitors/impact_indicator/index.php

[Toxin]

Well Virus, of course I've beeen there but do you see anywhere where it says buying or so?

[PotshotPolka]

http://www.shockwatch.com/contact.php

 

 

durrrrrrrrrr