Nicole Gastonguay makes wonderful things. There's a lot of knitted stuff around at the moment but this stands out as a cut above the rest. I had real trouble picking a favourite - check out her gallery for knitted sardine cans, robots and boom boxes (via Tantramar).
Update: Apologies to all crafters. Han has kindly pointed out that these are crocheted not knitted. Just ignore that headline, then. I can't think of a pun on crochet at this time of the morning.