The days of fancy looking season tickets are no more. The best you'll find are generic looking hard copy tickets with the Flames logo (check kijiji):
http://www.kijiji.ca/v-tickets/calga...ationFlag=true (Not mine)
if you buy directly from the Flames ticket office they'll probably print off the ugly ticketmaster style tickets.
If you want a souvenir from the game you can get a free lineup card from an usher; the Flames Gameday fanattic store also sells game used pucks starting at $25 (you'd have to go back to get one from Sunday's game).