Is your groom a bit reluctant to wear a floral buttonhole? Give him a fun option: Mei Origami Studio's pinwheel buttonhole.
Made using maps and a natural piece of wood as a stick, the pinwheel has a real vintage feel without verging on tryhard and would suit a more relaxed wedding.
Found on the wonderful world of Etsy, Mei Origami Studio also does a number of other adorable paper decorations - from wall pieces to bouquets (you can match your groom's pinwheel buttonhole with a pinwheel bouquet of your own, if you like!) and even sweet mini-stars perfect for table decorations!
Mei Origami Studio; Pinwheel buttonholes; £4.50 for two; www.etsy.com/shop/Meiorigami