Just rattling off a list for my own reference... Feel free to ad.. I've no idea what I'm going to do with this yet. (bear in mind I'm Canadian, so if you do add, I may not know who you are talking about if the campaign is say, strictly Norwegian;)

I think I'm just adding things I've found amusing too.

• Coke Zero Talking Eyeball
• The Tide Talking Stain
• Bell Mobile - Frank & Gordon Beavers
• Fido Dido - 7UP
• Ikea - Lamp commercial
• Doritos - Who's Bob? (Bob, Bob, Bob. He doesn't like mosquitos. Bob, Bob, Bob. He likes to eat Doritos...)- please don't ask how I remember that.
• Barg Root Beer - (Whadya mean Barg has bite? Johnny? Whadya mean Barg has bite? Johnny?)
• Geico - Gecko
• Geico - "Easy Caveman"
• Coca Cola - Max Headroom {though Max certainly became his own thing afterwards}
• Jolly Green Giant
• KFC - Colonel Sanders(as an icon, he's memorable)
• Bud Lite - Spuds McKenzie(Thanks to RG for mentioning this)
• St. Hubert's (I think I'm just adding him because of the Foghorn Leghorn look-a-like mascot)
• McDonalds - Ronald McDonald & Friends (not necessarily great, but certainly famous enough)
• Chips Ahoy Rainbow - Kevin {Tee hee hee! Oops!}
• Serta - Counting Sheep
• Wendy's - Where's the Beef
• Leons - Ho Ho Hold the Payment
• BC SPCA - "Some things you can only do with a pet" campaign
• Guiness - Snail Racing
• Nike - Play
• Mac - Hi, I'm a Mac. And I'm a PC {Brilliant!}
• Michelin Tire Man (I personally find it creepy, but he's recognizable and so he deserves a spot on this list)
• Mastercard - Priceless
• CitiCard - Finding your Norwegian Roots (Yeah, it's a total Mastercard rip, but it's funny all the same)
• CitiCard - Identity Theft
• Toys - The trailer of the movie staring Robin Williams where he was just standing in a Windows XP desktop pic-esque field just talking
• Red Bull - Bird
• Nokian Tires Electric Fence
• Nokian Tires Duck Hunting
• Whiskas Only Cats Can be Cats (Hubert) Mind you this whole campaign has been funny
• Kia Sedona
• Nissan Altima
• Excel
• Knorr