WCalifornia gold coinage is a broad category of privately-issued coin-like items that were used in place of official currency in the United States territory of California during the gold rush of 1849. Since the federal government reserves the right to issue legal tender coins, California gold coinage is a misnomer and actually references coin-like ingots with a stated tender value, tokens with a stated tender value (denominated), and tokens without a stated tender value (non-denominated). These items are only classified as an ingot if the value of the metal was close to the tender value marked on the piece. In spite of the misnomer, it is common practice among numismatists to label coin-like ingots and denominated tokens as 'coins' while labeling the non-denominated tokens as 'tokens'. Also, the small California Gold coins and tokens have been made in many locations other than California, often with a claim of being from California on the piece and these items are generally labeled as California Gold Coins or Tokens.
WCompany scrip is scrip issued by a company to pay its employees. It can only be exchanged in company stores owned by the employers. In the United Kingdom, such truck systems have long been formally outlawed under the Truck Acts.
WDetroit Community Scrip, also called Detroit Cheers, is a local currency used in Detroit, Michigan, first issued in April 2009. Modeled upon the local scrip that were used during the Great Depression, it is being used to restore local financial confidence following decades of economic decline. The Cheers are backed by U.S. currency and are fully exchangeable for an equal amount of U.S. dollars, backed by several Detroit-based businesses. There are currently $4,500 worth of cheers in circulation. Businesses can sign up to be issuers and print scrip after depositing a matching amount in U.S. dollars and then be entitled to print Cheers. More than 25 businesses have signed up to accept Cheers, but many others informally accept them.
WDisney Dollars are a form of corporate scrip sold by The Walt Disney Company and redeemable for goods or services at many Disney facilities.
WFacebook Credits was a virtual currency that enabled people to purchase items in games and non-gaming applications on the Facebook Platform. One U.S. dollar was the equivalent of 10 Facebook Credits. Facebook Credits were available in 15 currencies including U.S. dollars, pound sterling, euros, and Danish kroner. Facebook was hoping eventually to expand Credits into a micropayment system open to any Facebook application, whether a game or a media company application. Facebook deprecated Credits in favour of users' local currencies.
WFiro, formerly known as Zcoin, is a cryptocurrency aimed at using cryptography to provide better privacy for its users compared to other cryptocurrencies such as Bitcoin.
WThe American Liberty Dollar (ALD) was a private currency produced in the United States.
WThe Quasi Universal Intergalactic Denomination (QUID) is a proposed "space currency" created as a viral marketing campaign launched by Travelex with the London-based public relations and advertising firm, talkPR. The full name is a backronym from 'quid', a slang term for the British Pound. The campaign stated that Travelex was launching a new form of money for space tourists that had no sharp edges, was chemically inert, and had other advantages over paper money.
WZcash is a cryptocurrency aimed at using cryptography to provide enhanced privacy for its users compared to other cryptocurrencies such as Bitcoin.