ya what he said.... the good ones look like they have snaps for them BUT if i cannt use the clips for them id just use my hot glue gun with a drop of hot glue.... that stuff comes RIGHT OFF clean when you need to pull it off....
and well i wouldnt put them on anything that needed maintance work.
and if i wanna put them back on i just pull the old glue out with a screwdriver or pick and just redue it... very simple for a nice suttle change...