...but I cannot find one in any store.
I've seen a lot of older gents wearing them and seen them in older pictures. I think it would be wonderful to have one for my Kilt Jackets and the right one might even make a Kilt Pin. (Possibly.)
All you need to do is change the flowers to suit your outfit or your mood.

I could have one made but the money for that kind of thing is a long way off.

Here are a few examples on the dashing David Suchet as Hercule Poirot.