We built and just released (very likely the world's first) red packets with smart contracts. The receiver of the monetary gift can only use the funds after a redemption date set by the giver.<p>Hopefully this can give a modern spin to this ancient Chinese practice - <a href="https://en.wikipedia.org/wiki/Red_envelope" rel="nofollow">https://en.wikipedia.org/wiki/Red_envelope</a><p>Let us know what you think! :)