Ours have always been home made as well. Never had them open and inspect them so far, but I imagine that if they are to the size specs and color, they should pass if looked at.
Make sure ya got that signal mirror to. We forgot it once, and were told that a sat phone or inreach were not a substitute for the signal mirror. Thankfully someone on the trip had a mirror for there contacts.
We are a country of laws................ lots of them.
Congrats on the trip!!
The river probably thought, “ he is such an insignificant, pitiful, little creature, with such a short time to live, I will let him go this time, and try to teach him something” - Buzz Holmstrum