The famous Crux Terminatus from Warhammer 40k. This award, given to Space Marines, represents their many accomplishments and their Chapter's trust in them to don one of the venerable suits of Terminator armor.
The skull was sculpted in super sculpey firm clay (but never baked). The rest was done using .04" styrene sheet but to get the lines under the bolts I sandwiched some aluminum wire between the styrene. Painted with acrylics.
Measures 4" square