From a serious standpoint you may want to consider a custom made wooden box with a hinged lid and a lockable latch. It sounds more difficult than it is and is actually quite easy to construct. You can put 1 to 2 inch wholes in the side and cover them with hardware cloth for ventilation. This is similar to what they require for venomous transport. I still prefer my original idea however, we could make him walk barefoot as well.