The new tougher to forge Canadian $20 bills were revealed today. They go into circulation immediately. The new polymer bank note features an updated design of Queen Elizabeth II and Canada’s National Vimy Memorial and incorporates the latest know how in fighting counterfeiting. Polymer versions of redesigned $100 and $50 bills are already in circulation, and new versions of the $10 and $5 will follow by the end of 2013. The $20 note is the most circulated denomination in Canada, according to the Bank of Canada. Like the old cotton paper notes, they can go through the wash without being harmed.