Can't post pix. Sorry.
Back of my TJ, under the gate: "I piss stupid people off". I get a lot of comments on this one.
Sides of my TJ: embossed, Chrome Decepticon logo, similar to one in a previous post, but authentic old-school style instead.
On my TJ's winch: "Pitbull" (motorcycle stands) company logo.
On my TJ's hardtop glass:
LH, close to driver's door: "Police Protective Fund" logo (has NOT saved me from any tickets like I thought it would

)
LH, towards the rear: American flag.
RH, towards the rear: Newfoundland (Canada, eh?) flag
Rear, lower LH corner: Joe Rocket "Rocket Nation".
Rear, lower RH corner: Pitbull head sillouhette. (yes, I have the bike stands; and yes, I have the dog.)
Rear, next to wiper arm pivot: the Michelin Man (looks like Stay Puft marshmallow man).
On my TJ's windshield: Kansas City Jeep Club. Org. banner (don't be a hater...)
On my XJ:
Windshield: "ROCKS make me horny". Lotsa comments on this one.
Fenders (next to doors): embossed chrome Autobot logo. Also authentic style issue.
Bottom of quarter panels, directly behind doors (2 door XJ, btw): KC Jeep Club logo and Kansas Rocks (local wheelin' park) decals.
Rear hatch: American flag, Newfoundland flag.
Rear glass: "Alaskan Survivor, Prudhoe Bay" decal. Been there, done that.
You guys/ gals have rocked some pretty good stickers in this thread. I really got a kick outta the ZJ with "doesn't barbie drive a wrangler" sticker.