Yep, you nailed it. The copper blocks are now for sale on Ballet.com but there are restrictions when you try and check out.

"At this time we can only sell Ballet Physical Bitcoin to residents of these states in the United States:

AZ, AR, CA, CO, DC, FL, ID, IL, IN, KS, MA, MI, MS, MT, NJ, NC, PA, SC, TN, TX, UT, VA, WI, WV, WY"

So I guess this is the way to go for international buyers!