I haven’t had a chance to install and check this out yet, but, this looks like a promising VST for doing glitchy drums! It was created by Kieran Foster, a programmer from England. I can’t wait to try this until when I get back home… If I ever do. I’ll update with samples when I am able to play with, however, there are sound samples on the site. Here is a description from the site.
Glitch features a pattern-based effects sequencer that takes the incoming audio, breaks it down into user-defined slices, and then applies different effects to each slice. The sounds it generates range from quite subtle to extremely bizarre, depending on how much you tweak the controls.
http://illformed.org/plugins/glitch/
There are some other VST plugins for your perusal as well, check them out.