Here are the top 10 must do (nearly) free modifications:
1. Duct Tape Racing Stripes
2. Lime Green Rims.
3. Chrome Tape the Bumpers
4. Fake Side Pipes - You can do this with some PVC pipe and chrome paint
5. LEDs - easily done with old christmas lights.
6. A red velvet and chrome air cleaner on the dash.
7. Curb feelers.
8. Cow head stickers on all four doors.
9. Bumper stickers - as many as will fit on the back hatch.
10. And lastly and most importantly, multiple shark fin antennas!

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2006 Twilight Maroon H2, Procomp 6001 rims, 35" X 12.5 X 17 Xterrain tires, Ram over-the-hood brush guard, Jet Stage I, Warn 9.5 winch and winch bumper, Hedman Headers, K&N Air charger, Lightforce driving lights, a little CHROME for good measure
2006 Victory Red H3 (The Titanic), R.I.P. - It didn't float
1968 Mustang GT convertible
2005 Harley Davidson Hertitage Softail, Stage I, Vance and Hines Big Shot Longs - Sold
2004 Jaguar S-Type (the wifemobile)