Stuck on with 3M tape maybe ? That is how it looks in the pics.
Might try a hair dryer to loosen the tape and get a piece of fishing line behind them and work the line behind it to remove. This was how I removed the H2 emblems from the front doors of my truck. WD40 is good at removing the excess tape.
Just a thought
Dammit DRTY and wingn69 , ya beat me to the post 
