The designers for the 2017 predator prey coin (4th and final coin in the series) are allowing the buyers of the coins to decide what the subject of the coin will be. As the first ones to ever do this with a legal tender coin, the collectability could be amazing if this idea takes off like it has in other industries. The most innovative idea I've heard in the coin industry in years.

https://www.kickstarter.com/project...r-coin-crowdfunded-coin-design?ref=nav_search