Cardtrick.coin 'quarter', heads: 'George Washington', tails: "The Bald Eagle", key: "A medium silver coin."
Multipart coin toss
Cardtrick.coin 'dime', heads: "A head", tails: "A building", key: "A small Silver Coin"
Cardtrick.coin 'penny', heads: "A bird", tails: "A tree", key: "A small copper coin"
Then create the toss..
Cardtrick.coins 'change', 'dime', 'penny'
Special "Magical" multisided coins...
Cardtrick.coin 'quartz', up: "a shiny face", down: "a scratched face", left: "a bright face", right: "a dim face", key: 'Rose Quartz'
Cardtrick.coin 'tigereye', up: "a shiny face", down: "a scratched face", top: "a bright face", bottom: "a dim face", key: 'Tiger Eye'
Cardtrick.coin 'ruby', up: "a shiny face", top: "a bright face", key: 'Ruby'