I just finished watching The Batman Vs. Dracula last night, and at the end I was wondering what Batman did with Dracula's ashes.

Well, after thinking about it (way too much), I finally figured out that he put the ashes in the container that he gave to Superman. (you know, the one that he threw into the sun which was supposed to have kryptonite in it?) Thus the lead container would have melted and Dracula's ashes would have been exposed to sunlight for all eternity!

I clearly have too much time on my hands.:P