Launch for KODO's English online store came on March 1, 2010. While the merchandise is still very limited, they'll be adding new things gradually.
Right now you can buy CDs, the 2009 Kodo Yearbook, and even those prized Kodo chappa (which I hear are so much easier to play than any other). I'm on my way to check out the chappa now, but check out the site for yourself!
KODO Online Store in English!