This could be done with wooden spoons that were spray painted or decked out in jewels like David's as well. But since I didn't have enough wooden spoons, you'll have to pretend.
I started with 2 different sized round mirrors that have been around here so long I can't remember where I got them, plus a buncha stainless steel spoons, big and little:
If I do this for real, I'll use an outdoor glue, probably E6000, since I always have it on hand. Next I started arranging them in all kinds of ways. Each picture is of a different arrangement, you'll see. The first is with all spoons, with the bowl of the spoon outward and the smallest mirror in the middle, then the big mirror and fewer spoons with the small mirror over the ends of them:
And so it goes, just watch for the changes; lots of possibilities.
If done with the wooden spoons they would be a lighter weight, but these could be hung on a fence or wall or even a tree trunk, I think. Maybe propped against something in the garden. They might be a little too heavy to be staked like the flower plates.
I've always liked using mirrors and reflective items in the garden.
That's about it; I sure hope I didn't use the same photo twice, hard to see those tiny little thumbnails.
(Edited to remove the last photo which was a repeat. I had a feeling I'd do that!!)