Some of the online retail shops have them in stock now, and some are popping up on ebay too. Best Price I can find there is $30 with free shipping in the US.
my kb had the sideswipes for 13.88 each ...had about 20,00o of them...(no seriously ...they had a huge amount of them!!) if yuo want a few or soemthing ya can send me the moneyplus shipping and i could buy how ever many ya wanted...just let me know...