Ok I know you will hate this idea but.. I gotta propose it anyway. One of the very entertaining and yet most devestating and memorable things I remember about PnP was when wizard wands or staves were broken. Many a good wizard, his party and generally everything else for a several hundred feet around were obliterated.
I think this should be implemented in DDO but in a more restricted manor. I realize with thecurrent death system and item breakage that implementing this full scale would cause many a party wipe and tons of complaints. What I suggest is a few choice high level wands/ arcane staves be introduced that are ubertastic but carry that one fatal flaw. If broken the released magical energy pretty much ensures a party wipe but the power of said wand/staff is such that carrying one would be very very beneficial. Would lead to some interesting choices, tradeoffs and game play strategies. I have no idea on balancing such an item as yet although I think it would be possible.
Now I'm gonna dart into my little fall-out shelter and try to weather the ensuing storm