Inspired by James Holloway's excellent snowy bugbears, here are some yeti for my game:
Those ridiculously oversized maces are now big chunks of glacial ice. Possibly hollow.
You can also see that I clipped their spiky shields down a bit and re-oriented them. I don't like giant spiky shields held longways along the arm very much. I pulled them off, cut the peg, glued it on and gap-filled it with green stuff. Then I put on greenstuff straps.
Mine aren't painted very well. I had real trouble getting a dirty blue. But it's okay for tabletop, and I'm so done with painting them.
I have some custom GURPS stats for these guys, but you wouldn't go too far either just uses ogre stats from DFA1 plus Fur and Temperature Tolerance and Chameleon, or using or the abominable snowman stats from Pyramid 3/50.