The use of the phrase 'Hammer time' in a non-ironic sense.

[hirez]

That was hard work. I can now add silver-bothering to the list of things I've had a crack at that haven't turned out entirely rubbish.

I'm sure the recipients will be startled. And then probably beetle straight down to Elizabeth Duke to have the objects melted down and swapped for something less interesting.

Photos much later.