Rule of Customs:
If u can put something in a box to ship, Customs can find a way to make it a paperweight.
With all the hoo-haw created about how UPS and FED EX throws boxes around like lawn darts in 1970's suburbia, you'd think the news channels would do a story on customs once in a while.
Our hobby though, creates an item that from a certain point view, (X-RAY, etc) looks potentially dangerous, so I suspect a box with a metal cylinder full of electronics probably will get inspected moreso than that fruit cake I sent overseas.
(If I have to suffer through fruit cake, ...so does the rest of the world).
Just wait until someone contacts u to let u know that custom removed all the guts of the saber to "inspect" it.