13 comments McDonalds Canada: Dollar Drink Days are back for summer! Only $1 Any Size Posted June 1st, 2010 by Justine & filed under Canadian Deals & Coupons. Hello there! If you are new here, you might want to subscribe to the RSS feed for updates on this topic. McDonalds is bringing back their $1 fountain drinks, from June 1 – Sept 6, 2010, you can get any size fountain drink for only $1, any time of day. Nice way to cool off in the warm weather. Thanks to 23edge for sharing this with us!