No address to mail it to.

And my guess is that mailing it won't be any easier as mail is going to involve flying it (as it has to go 'across the pond').

I once faced the same situation when flying within Canada (where I live). On my flight TO Nova Scotia, no one at the airline was the wiser (the stove was new, too). On my return flight, they found out I had a stove (I had drained the fuel) so they made me take it out of my luggage. Thankfully, someone nearby heard my predicament and offered to take care of mailing it to my self for me (gotta love the kindness of Nova Scotians). he said he would turn a blind eye to the fact that it was a stove. I didn't question it.

The stove showed up about a week later.

Anyhow, I won't have the ground shipment option going over to the U.K. from Canada.