I did a couple of neat customizations to my 91 Tracker.
First I cleaned up my grill, sanded it with really fine grit sand paper, primed it, sanded, and painted it matte black to match my bumpers. I think it looks pretty neat.
Then i took my seats out, cleaned off the floor (the hard rubber mats are a paint to scrape off), cleaned it again, then put spray-in bed liner throughout the entire floor. Now when it gets dirty just unplug the floor plugs and hose it out!
Then i just cleaned up the efi and painted the symbol.