and a quick and easy skirt might be to just spray paint the outside of the bin. (get the kind for model cars, i think it will hold better as it's made to paint plastic)

on another note, i tried rooting clones in net pots with hydroton around the stems and all i got was dead cuttings, i think you will have much better success if you just dangle the stems above the solution so they get splashed constantly by bubbles.

here's a couple of pics of something you can do to make it work
i had more cuttings than would fit into the cloner so i had to improvise, using 2 of my DWC's as cloners, except that the holes were too big. what i did was to cut out the bottoms of some plastic cups, then i got a pool noodle and sliced off some 1 inch thick pieces to use as inserts, the noodle already had a hole running through it so all i had to do was slice it to allow for easy removal of the rooted cutting