It took me a while to figure out how to spell boutonniere, but once I did, I found several pages of beautiful boutonnieres, not to mention many talented etsians. Here are a few that stood out from the crowd:

This one might be my favorite. Subtle & pretty.
Get it from
ekaminsk
If it's green, I like it. I was drawn to the spotted
feather & earthiness. This is one is from
lfinkels
this one is from
tinarie21. I love the dotted ribbon
wrapped around the bottom and the monkey tail.

Peacock feathers are so popular right now, and I love
that
whichgoose paired it with a button!
There are many more etsy sellers who make gorgeous boutonnieres, here are a few that caught my eye:
JLoveSmyrakimamanda1986easteryuenjoy!