Cracked a T-Pro frame (Who hasn't!?) 
My Echo lite forks are cracked. 
Snapped a FSA Platinum Pro BB, demolished the bearings on a Truvativ BB, and also some cheapo BB. 
Mashed the bearings on a Chris King headset. 
Cracked two Kris Holm rims (too many grinds...) 
Cracked a Profile hubshell, and also cracked 2 of them around the ratchet. - Not to mention the few pawls and springs I'd snapped over the years! 
Usual snapped chains, mainly KMC Kool ones. 
 
 
That's all I can think of in total, not bad for 6/7years!?  Most recent one was probably my cracked forks, which I really should replace...