Stoff im Gehirn and Meri from Tentaclething made super cool buttons for example
Lolita - drugs would be cheaper! I loooove the design♥
Here you can see the two designs from the Enchanted event. They are a nice goodie and an easy-made advertisement for your label or shop.
Last year I bought a cute jeans-jacket from Taobao with pearls and lace. I will but my buttons on it and wear it for casual coords in summer.