I can't stand the black nylon strap that came on a lot of my fixed-position stands I own... I take grey primer paint in a spray can and break it up by painting stripes and spots on it every four or five inches...

Not sure if it would attract a deer's attention that much (I killed a bunch before I started doing that), but I know I used to be able to spot that black horizontal stripe from 100 yards away when walking up to my stands in the woods... If nothing else, they're less visible to potential thieves.