Oh, perhaps they couldn't find the ones from CDL07-08. I forgot about them, but they're black with gold "A" emblems. Or maybe they were not able to go to Japan at the time? Haha~
http://hamadakihiromi.seesaa.net/article/75716002.html
Quite classy. The design changed quite a bit after that year's. Maybe they weren't intended to go on for more than one CDL? They also had a white/pink variation that was made for some sort of celebration in 2008 at SACAS. I think that was the Ayu exhibition that had her nails on display.
I vaguely remember PCDL may have been the year that they were like "Wow, this was such a big hit that we're doing it again!" and since then they've had new chopsticks every year.