Interesting way to do this:
http://www.advisorstream.com/read/how-to-explain-cryptocurrencies-and-blockchains-to-the-average-person/?c=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJub2RlX2lkIjoyMDgxLCJwcmV2aWV3IjpmYWxzZSwiY29tbV9pZCI6MjU0ODY1LCJkZXN0X2lkIjoyODM3MjR9.HjmbF_FtfAyzbjbH4LISZsia6tWt-70IGi5X4YrFJ_4