One option is to override the necessary languages.
josh_dollar = {
:priority => 1,
:iso_code => "USD",
:iso_numeric => "840",
:name => "United States Dollar",
:symbol => "Josh",
:subunit => "Cent",
:subunit_to_unit => 100,
:separator => ".",
:delimiter => ","
}
Money::Currency.register(josh_dollar)
josh_dollar = Money.new(1000,"USD")
josh_dollar.format
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