Have you ever been bubble rapping a turtle and stopped to think about what conditions they experience when their getting shipped? Me neither. However, my friend, Dr. Joe Mendelson, certainly has.
After a quick Google search, I found that the only shippible accelerometers were expensive commercial. I couldn't find a DIY version on the first page, so I resorted to doing it myself.
an inertial measurement unit to monitor the conditions of live turtles during shipment