The Lucky Coin is a very unique and innovative product created by Microsoul using the series three hologram. These coins have a private key, but their public key is not visible. In its place, ‘#[round number].[coin number] LUCKY’ is seen through the window on the custom hologram. The ‘game’ works as follows: every week, ten buyers purchase a Lucky Coin for 0.15 BTC each. Every coin is funded with 0.01 BTC, but a random one is funded with an additional 1 BTC bringing the total to 1.01 BTC for one of the ten coins. In essence, this coin is a lottery ticket with a twist. What makes this much more than a scratch-and-win card is the unique community aspect. The ten public keys are released publicly, so that everyone knows how many coins in a set have been peeled and if the 1.01 BTC coin is still un-peeled. Often, buyers will announce whether they plan on peeling or not. As more coins in a set are peeled without the prize being found, the value of remaining coins will increase as their probability of containing the prize is higher. This game has drawn lots of collector involvement, encouraging commentary and speculation amongst participants.