Considering his history in Marvel comics, the Grim Reaper deserved to be captured in plastic. He was made from a Classic X-Men Cyclops head; Loki upper torso, arms, and feet; and Adam Warlock hips and legs. The cape is a trimmed down Swarm Cape. I may replace the cape with a better one.
The headgear and scythe blade were the most challenging parts. The headgear was cut from a CD jewel box case and inserted into his head via a slot I cut with a Dremel. The blade was also cut from a CD jewel box. I attached it to his arm using miscellaneous parts, and kept the rotational articulation by sticking a thumbtack into the shaft. This is hidden under the arm cap.
Here's a side shot showing another blade position.