Liam Mooney, founder of an Ottawa-based design firm, made a hat emblazoned with "Canada Is Not for Sale" in response to Trump's tariff threats and suggestions that Canada become the 51st U.S. state.

Liam Mooney, founder of an Ottawa-based design firm, made a hat emblazoned with "Canada is Not for Sale" in response to Trump's tariff threats and suggestions that Canada become the 51st U.S. state.

The weeks since Liam Mooney and Emma Cochrane dreamt up a viral hat meant to fend off any notion that Canada will be taken over by the U.S. has been more of a crash course in manufacturing than in ...