I do TGU's with my kids. That's a crowd pleaser. Here is the strength feat I am working the hardest on right now.
I have been able to tear a decent sized phone book for many years but what Adam does in the video above is the real deal. BTW here is his signature quote on the http://www.dieselcrew.com/forums/
training is about being strong, not stupid little tricks to look strong
What we think, or what we know, or what we believe, is in the end, of little consequence. The only thing of consequence is what we do. -John Ruskin