Goncha Miniature Keychain Set with Acrylic Charm - 2 Types. This is a popular miniature keychain set with an acrylic charm. The set includes two types: Goncha Black Sugar Oolong Milk Tea and Alishan Oolong Mango Tea Aid. Only one set is available. This was a convenience store exclusive, and I visited eight stores to collect them, but they were mostly sold out. Recommended for miniature enthusiasts.