I wish I had seen this before I started installing my wheel covers. The adhesive backed velcro did not hold mine on very well. There are two on the side of I-44 between here and Oklahoma City.
Now parachute cord (550 cord) has worked very well holding corroplast covers on. I also made some partial front wheel skirts from corroplast and used the factory screws that hold the wheel well liners in place. They held just fine. The pictures from page 1 aren't showing up for me, but my full skirt plans involved using some small L brackets to hold some plexiglas/LEXAN in place, using the same wheel well liner mount points.