It's still a thing with Tim Hortons' "Roll up the rim to win" campaign, where you can win money, cars, barbecue grills, dougnnuts, or coffee when you buy a coffee.
Actually, it was cancelled this year, because millions of people handing pieces of coffee cup rims to workers isn't good when there's a global pandemic going on.
It wasn't cancelled, it was just moved to their app. When you scanned your card/phone you would get credits to "roll up". I only realized when I opened the app (instead of using mobile wallet) and saw I had 25 "roll ups" to use.
Actually, it was cancelled this year, because millions of people handing pieces of coffee cup rims to workers isn't good when there's a global pandemic going on.