Well, I was watching Myth Busters, and they were using these shockwatch things to test pressure of shooting fish in a barrel (not live fish of course). Anyways, I wonder if anyone has ever used these to ship fish or corals or anything.
http://www.shockwatch.com/shipping_handling_monitors/impact_indicator/index.php
Basically, it turns red if they are "mishandled" or dropped.
http://www.shockwatch.com/shipping_handling_monitors/impact_indicator/index.php
Basically, it turns red if they are "mishandled" or dropped.