Wis. Stat. § 5.80

When an electronic voting system is used in a forthcoming election, the municipal clerk may provide, for the purpose of instructing electors in the election, one or more demonstrator electronic voting systems using the names of fictitious candidates or fictitious questions for placement in any public building within the municipality in which the election occurs. If such placement of a demonstrator takes place it shall be made available at least 30 days before the election.