Sure.
I have lots of breakables shipped by UPS and Fedex, and they somehow seem to miraculously arrive intact, while the postal service looks likes it give the package the Sampsonite Gorilla Special Treatment, and they smile and shrug.
“So Sorry! Not our problem! You contact shipper. We have our money!”
Screw them. The USPS can rot in shipping provider Hell and shrug their shoulders. I am all too happy to let them carry letters they can mangle but I can still read, but I wouldn’t ship an indestructible anvil with their services.
Nothing personal to any mail carrier out there. Just making a living, I understand.
Best bet ~ light wooden frame will work much better than form fitting foam plastic.
Remember, if you don't insure it it's your own fault because the legal doctrine the whole world works under is that the shipment carries the seeds of its own destruction. Without that doctrine NO ONE would haul anything.
The folks who sold you the spice bottles should have obtained insurance.