This is a small side project that I worked on over the weekend. This will allow you to embed a love message for your significant other on Valentine's day into the blockchain.
http://www.thenoteblock.com/The project was inspired by the upcoming v0.9 release which makes OP_RETURN (allows you to create immediately prunable output to attach message bytes) a standard transaction output in Bitcoin. And when does get released we will move to use OP_RETURN instead of creating messaging outputs.
Bitcoin as a programmable currency protocol has enormous potentials beyond just sending transactions. And OP_RETURN (when it does become standard) has important implications for smart contracts, using Bitcoin transactions to prove / transfer ownership. The objective of this project is to raise awareness in that area. And make developers realize the potential in a fun way on Valentine's Day.