I made my own DIY shotgun shell boutonnieres! I ordered the vintage shells and the feathers from separate shops on Etsy, and I'm growing my own Baby's Breath to replace those pink flowers on the day of the wedding.
There are seven boutonnieres in total: five 12 gauge and two 410 shells. One of the 410 shells will be the ring bearer's boutonniere, and the other will be my mom's corsage. And the 12 gauge shells go for the groom, three groomsmen, and my father.
Basically, all I did was hot glue a bunch of feathers on top of each other and shoved them down into the shells. Then I stuck the flowers into the shells in front. Easy and awesome!