The world grieved on Friday upon hearing that beloved actor Leonard Nimoy, most famous for playing Spock on Star Trek, had died.

Many took to social media to express their condolences, but the Canadian Design Resource (CDR) led a call to action, encouraging Canadians to"Spock" their $5 bills. With a pen and a little bit of time, former Canadian Prime Minister Sir Wilfrid Laurier, who is featured on theCanadian $5 bill, can pass as a pretty convincing Spock.

"This series of Canadian bills was an easy target," CDR's publisher Todd Falkowsky told Quartz. "The existing portraits are quitelarge and can be improvised with easily, and the color of our $5s are the same blue as Spock's uniform."

"Spocking Fives," as it's called, is nothing new. Canadians have been altering their $5 bills for years, according to the HuffingtonPost. Even after the banknote's design changed in 2013, some were still able to transform Laurier into Spock.

To read the complete article, see: Canadians 'Spock' their $5 bills tohonor Leonard Nimoy (http://mashable.com/2015/03/01/canadians-spock-bills/)