I'm newish to pin trading and have been trading online on a site I found called pintradingonline.com. Anyways, with shipping at almost $3 a pop, I had a trader send me a couple of pins the other day and their shipping (was on the envelope) was only 67 cents! I sent her a message to see how she got it so cheap and she said UPS but she didn't elaborate any further than that. Looking on the UPS site it looks like the cheapest option is $10. I use paypal for my shipping.