Total Recall - Hanging from an upwards-moving elevator with both arms - forcibly, I might add - and then having them crushed off by the elevator's floor filling the gap for the next floor, and falling to your bloody, armless death, then Schwarzeneggar (hope I spelled that right) throws your arms down the shaft...
EDIT: For that matter, ANY way to die in Total Recall would be pretty gruesome, except for simply getting shot. That would have to be the LEAST gruesome way to die in that movie...
"And the Most High said unto Moses, Ahayah-Asher-Ahayah. And he said, Thus shalt thou say to the children of Israel, Ahayah hath sent me unto you... This is my name forever, and this is my memorial unto all generations."
1953-2011... One day, mother, I shall see you again...