Copper pavers: I couldn't afford solid copper but I'm thinking a piece of copper sheeting over standard concrete pavers? Stainless steel or Cor-ten would also be nice; the liquid adhesives designed for concrete should work well to make the attachment. Great for the paths in the newly installed (but still unfinished!) potager.
Silver orbs in the pond: these are hand-polished stainless steel (hollow, obviously). Given that similar orbs (machine-polished) are readily available from on-line purveyors (google 'silver garden globes'), I wonder at bit at its inclusion in the auction...I suppose the placement of the orbs counts as the art? Still, lovely for a party and I think I can rely on my own artistry to place them in the garden pond-that-used-to-be-a-buffalo-wallow, now brim-full with early fall rains.
The original works are 'Narcissus Garden' by Yayoi Kusama and 'Cuprux' by Carl Andre.
UPDATE: Reader Jamie has sent a helpful comment to this post, which I've added below...the information on the aural and interactive qualities of the installation is especially enlightening. Thanks, Jamie!
"Yayoi Kusama did an installation of thousands of those silvery balls floating on the good-sized indoor lake within the Queensland Art Gallery in Brisbane, Australia a few years ago.
As well as being lovely to look at, they made the most pleasant, deepish-hollow sound as they gently knocked together. And, best of all, all the children visiting had wonderful fun pushing the balls around. The Queensland gallery tries very hard to make itself as child-friendly as possible and allows kids the chance to touch things when it won't do any harm. It was a delightful scene.
We bought one of the balls while at the gallery and it sits in a stainless steel bowl filled with water in our garden, still in very good condition after all these years. Every time I see our little silver ball I think of that charming installation."