Placing items in bond during a US stopover

Hi folks,
On the way back from NZ, I'm having a 2 night stopover in the US. Seemed like a good idea rather than coming straight through in one go.
I thought that would limit how much NZ wine I can bring back duty-free, limiting it to the US duty-free import limit, which is less than the UK.
However, I heard that it's possible to bond such items as long as you show evidence of intending to leave the country with it. The US Customs seal it, you don't have to pay import duty on it, and then you just check it in when you depart, showing that the seal is unbroken.
I've been searching online, but the US CBP site isn't being helpful...
Has anyone here done this and has a clue how it works?
Thanks!
Mike
On the way back from NZ, I'm having a 2 night stopover in the US. Seemed like a good idea rather than coming straight through in one go.
I thought that would limit how much NZ wine I can bring back duty-free, limiting it to the US duty-free import limit, which is less than the UK.
However, I heard that it's possible to bond such items as long as you show evidence of intending to leave the country with it. The US Customs seal it, you don't have to pay import duty on it, and then you just check it in when you depart, showing that the seal is unbroken.
I've been searching online, but the US CBP site isn't being helpful...
Has anyone here done this and has a clue how it works?
Thanks!
Mike