[frankenMonkey]

Yes. USPS Priority Mail.
APO AE.
Go down to your local Post Office and talk to them. I order my boxes here: USPS

You need to fill out the Customs Forms, so get a pack of those, either from the PO or the USPS website.

[HiJinx]

Using the USPS.COM web site, you can fill out the customs forms online.

You’ll need to order the sleeves there, also; or hope that your local post office has them on hand.