Mount “ditch spots” on tow hooks? / legality / clamps?

Here's one before I put the lights on the front. I bought it in 09 in Phoenix and drove it back. All original paint, with the graphics done at 43 mi. It made a heck of a tow beast, not as good as the Duramax though, but lousy mileage. I sold it without the motor and trans to a guy who was going to do a Cummings swap