1.) How the mum dies in Haute Tension
2.) When the guy in Dog Soldiers runs into that branch - not intensely gory, there's just something disturbing about being killed by your own momentum
3.) The ear and puss in the custard in Brain-dead and the lawnmower scene
4.) The bit with the dogs in The Thing
5.) The various razor-heeled boot kicks in ichi the killer
6.) The liquid nitrogen face smash in Jason X
7.) The samurai sword motorbike propelled decapitations in Demons (although i haven't seen that in a while and it was all pretty messy from what i recall)
8.) The face stabbing and ear slashing in Chopper (not horror i know but still messed up)
9.) The chainsaw upper-head chop in Chainsaw Massacre 2
10.) When Marv chops that guy up in sin city and lets the dogs on him (not really horror but, again, still messed up)
http://www.geocities.com/headissolve/