"a rigid strip of metal"
"a table made of rigid plastic"
"a palace guardsman stiff as a poker"
"stiff hair"
"a stiff neck"
"a rigid disciplinarian"
"an inflexible law"
"an unbending will to dominate"
"with eyes set in a fixed glassy stare"
"his bearded face already has a set hollow look"
"a face rigid with pain"