Not sure if anyone is interested, but I found some contacts which are very similar to Kuu's. Obviously kuu wears her own contacts, but Starmish by GEO are very similar in appearence to the ones she has been wearing recently, such as in Vivi.
http://www.eyecandys.com/geo-starmish-brown/
I've been admiring Kuu's contacts since Vivi, so I'm glad I've found 1 year disposable ones that look similar.