Great work they would be a "blast" to make and watch the expression.
I hope you hand delivered them and not the surface or air mail system!!
I made a letter bomb many years ago for demonstration purposes.
I used a polaroid camera film pack battery and some modelling clay,
The QM insisted in locking it in the vault and getting the engineers to certify it and marking inert all over it, kinda destroyed the effect.
call me sick or whatever you want i like them. might wake my brother inlaw from his naps if they where real! always knew the TSA where a bunch of no humor stick in the muds. loosen up its not like they are at the airport or in the mail or something.
Now my girlfriend is upset with me that if mentioned TSA… she says it's not TSA that you'll have the problem with… it's the government… this is a public site and if seen you'll be flagged and dealt with.