i use those clips and they work great,.... you dont really need any extra padding as they have a thin ( 0.5cm ?) layer of foam on the sides of the clip.
well mine do anyway, and most that i've seen at the local music store also have the foam, but i have seen a few without. a lil' extra padding wouldnt hurt though,... like wrapped in tissues or something.
unless you have someone running up and down the stage ( like i did at a gospel recording
) you wont have much of a problem. but if you do have an active floor, head to your nearest $1 shop and pick up one of those wire pencil pots. run a couple of rubberbands through them and you'll be able to hang the blondies inside.
you could cut a hole in the end of the pencil pot, but since the blondies are so small you dont have to, just let the cable spool in the back and hang out the opening.