Shido and Evin -- two regs on the forum -- have been working on a surprisingly thorough set of digital Sam and Fuzzy Magic: The Gathering cards. I readily admit that I have only a passing familiarity with the original card game, so I have no idea how well these would actually work "in game." But I still enjoyed them, and I think you might too... although I will warn you that a few of them won't make sense if you don't frequent the forums regularly!
Shido and Evin are about as hardcore as Sam and Fuzzy fans come. I think Shido is the only person who has ever actually framed a Sam and Fuzzy print. I got to meet him in person this year through the miracle of Comic-con. I think we got along surprisingly well considering we disagree on just about every social and political issue either of us can think of!