One of the reasons i really enjoy Ogors is that each Ogor, in lore, makes their own clothes and armor from stuff they've pillaged. Each of my ogors have pants made from a different cloth. Try to imagine what kind of cloth an Ogor might find after eating a village, then use that as the pattern for the pants.
Flags, tablecloths, cloaks, sails, burlap, etc. I'll often make teach leg a different color too, seamed up the butt with those massive seam lines.