Canada is holding a special parliamentary election in Manitoba on June 19 to fill a vacancy. The special election ballot has 48 candidates listed. There would have only been six candidates, except that the Longest Ballot Committee, a group that is trying to get proportional representation for Canada, deliberately encouraged 42 individuals to file, just to bring attention to their cause.
See this story. All of the 42 individuals have a single campaign treasurer, and all are on the ballots as independents except for one who is listed as the nominee of the Rhinocerus Party.
Candidates get on the ballot for member of the federal parliament by filing 100 signatures. Thanks to Tom MacMillan for the link.