The Basket of 10 Cyberries is an item in Quest 1: Mission Motherboard. It can be obtained by shaking one of the Cyberry trees in Aquari-Yum or R-Fair City. Wicked and Mr. Z each sell up to three for 15 Snelfus each. Creech sells up to two for 20 Snelfus each.
Delicious! Especially as part of a Chocoberry Chiller!