Just use PayPal to send your money. $3 for one sticker and $5 for two stickers. Make it payable to:
Please be sure to include your address in the PayPal notes, as PayPal doesn't always include it automatically. Also, please let me know which stickers you want, BMWRT or BMWST.
However, I'd wait until after the first of the year. I'm going to be out of town starting this morning and won't be back until 1/4, so I can't ship anything until then.