COSPA will be releasing rubber keychain and strap sets of Crypton Future Media’s characters this October. All Cryptonloids are featured, which includes Hatsune Miku, Megurine Luka, Kagamine Rin and Len, Meiko and Kaito. Each character comes in two styles: A keychain for use on backpacks, handbags or key sets, or a strap that fits into the headphone jack of any mobile device.
The straps can be found on Amiami for just 648 Yen each, and their small size also makes them convenient to bundle with other orders without increasing the shipping costs (shipping for the strap alone would normally be more than the strap itself). They are available for preorder now, and scheduled to release sometime in late October.
Closeup View of the Hatsune Miku Rubber Strap