TapTap is a design project created by Woodenshark et al. on KickStarter. TapTap has a form of wristband and transfer touch between two people. When touching its surface, the remote device vibrates synchronously. It can also be used as detector for hand's movement to create secret joint action for remote couples.
Source: http://www.kickstarter.com/projects/woodenshark/taptap-wristband-a-new-way-to-say-i-love-you (2013/10/25)
http://www.taptap.me/ (2014/05/05)