Pictures by (clockwise from top left) Aimee Pelletier and Carly Stipe, The Wool & Cotton Co., Tanis Gray, Susan Rainey
I didn't find any patterns replicating the hats for Team Canada, but they don't look very difficult to reverse-engineer:
I bet if you zoomed in you could even count the rows and the stitches!
If you need a bit more of a challenge, there's this curling-inspired beauty:
I did just watch mixed-doubles curling (waaay more entertaining than regular curling, for my money) for the first time, so I know am all ready for a rock-festooned hat.
And you could always knit your family this matching set! Hee!