I've added a "shopping cart" option to our blog as an option for buying shirts. You'll have to include a message with your paypal payment if you order an infant-child size with the exact size you need. There weren't enough drop down menu options to do EVERY size. All sizes are available- newborn to adult. All sizes are $15, with the exception of the 2 largest sizes, which are $17 because the shirts cost more to buy.
In the next few days I'll be adding a few more options of things to buy!