While wholly unofficial, you won't find a better Eva-themed masturbator than this one from Frontier Japan. The EROS 2.0 type001 Onahole is not only based on the Rei Ayanami character, her love tunnel comes in the shape that is inspired by Rei as well, stretching upward toward you as if waking from a deep or cryogenic sleep.
Translucent in color so you can enjoy the fantastic 3D image of Rei reproduced within, this little lady has a a simple but sophisticated style, with a cylindrical outer surface and a diamond-cut entrance to her inner chamber. Inside, you'll find Rei as if she were suspended in crystal. Her gorgeous body has been replicated in loving detail, which you can push directly into as you penetrate the hole. So plug in and connect to an "Ecstasy Level [of] 400%".
The EROS 2.0 type001 Onahole features:
