Buttons for Stubborn Press & Company

I've decided I needed something to give away for free with orders and/or when we launch our website officially. I think buttons would be the most fun (and also stickers), so I'm coming up with a few different button ideas. Now I just need to find the most affordable place on the internet to get buttons made, short of searching Ebay for my own button maker (I don't need another hobby ... I don't).

Typefaces used are Prova and Lunchbox Bold.