This is such a cool thread! Penguins (the animal) have been my favorite since high school, but I didn't realize this is what the penguin fetish at the running expo was all about! I'll never be considered an athlete - that was always my other four younger brothers and sisters. I was always the musician, the marching band one. Marched forever, and looking back, it was great training for a slow jogger/walker/runner like me. What a great image!
A few years back, I tried the Disneyland half-marathon and from my back corral start, stayed just ahead of the bus. But I finished, despite plantar fasciitis issues that went on for years.
Approaching my half-century mark, I have decided I can get old and fat, or just old. After a superstressful Fall season at work, which took away all training opportunities for me, I managed to complete the Disneyworld Half-marathon in 3:25. Bless the woman running the 3hr Clif Pace team! I stayed with them until Main Street, Magic Kingdom, which gave me enough cushion to finish ahead of the 3:30 bus. This penguin lives in fear of being picked up by the bus!
My next goal is to get signed up for the Disneyland Half this fall, so I can complete my Coast to Coast (penguin style, but finish it). I was astounded to be put on the wait list two weeks ago 
But the great news is that for our actual 50th year celebration (I'm 49 now) in 2012, my husband just agreed to sign up for the WDW half and try for the Coast to Coast, too! Penguins unite!
I love this thread. I have always had "crunchy" knees, even as a kid, so I doubt I'll ever get to much better than a 3 hour half marathon. But that's just fine with me. I just want to get through it, and then go have some more fun. That's what it's all about, right? 