As far as taking it into customs is concerned, I'm wondering if there is any way to block it from showing up on the x-ray or if there is a good way to hide them if they do go through my stuff. I tried to research how gold would look under an x-ray without success. Do they just look like copper and alloy coins? Is there some clever way to obscure them while perhaps putting regular coins in the same area in case they try to search my bag? I'm also worried about getting through the baggage check in the States as I believe some of you can identify with.
Get a "passport wallet" - the kind you can carry round your neck
You know the kind... lots of pockets, zippers, pouches...
In goes...
1)- Paper stuff... passport, air tix, immunization record(?), different paper fiat money?
2)- Metal stuff + house or car keys, assorted coins (quarters, nickels, dimes) +
Above harmless, ordinary metal stuff is camo for your <{[
(1/10, 1/4, 1/2, 1oz Au.)]}>
Hmmm... assuming you don't put knives or scissors in there?
No bozo gestapo will EVER sweat a small pile of keys/coins in a document holder.
All coins look alike to an airport x-ray.
Give NO reason for them to look inside.
Psssttt - don't be nervous, dude - the "behavioral facial interpreter~specialists" are watching YOUBut, they've got bigger fish to hook and fry than you.
Put the cleared pouch back on your neck... tuck it in your shirt... walk away.
AND... Make sure ya gotta VERY GOOD stash place in your hostal, departmento, casa...?