Adhere the black strips onto the banner and add your letters to spell out Boo! Punch a hole in each corner then run your string through the banner - see how cute and easy that was to make?

This article was originally published on www.si.com as Following Senators Fans, Raptors Fans Also Boo 'Star-Spangled Banner' Pregame.

Fans at BMO Field boo U.S. anthem prior to Toronto FC's home ... Booing of The Star-Spangled Banner reignites debate on national anthems in sports More MLB coverage Hall of Famer Rickey Henderson ...

This won’t go down as a Boo Jays game that Toronto and Canada ... And in the first few bars of the Star Spangled Banner you could hear a low roar of some boos, but that was soon drowned out ...

MOOSE JAW, Sask. — In a switch from the norm at recent sporting events across Canada, not a single boo could be heard during the playing of "The Star-Spangled Banner" on Sunday morning at the BKT ...

MOOSE JAW, Sask. - In a switch from the norm at recent sporting events across Canada, not a single boo could be heard during the playing of "The Star-Spangled Banner" on Sunday morning at the BKT ...