Metal Frames to Make A Mobile (SEE LAST PICTURE & Pinterest ideas. You can choose from one 17” or 18” big frame. And 1 raised small piece of 8” across OR the flatter top piece of 9” across. I would choose an 8” & 17” or a 9” and 18”. You can decorate them with all kinds of items like ribbons, tassels, butterflies, bees, crystals, trucks & cars for a boy, Curly cue ribbon, Disney princess toys for girls. What could you create? I do have some white sheer curtains if anyone would like to view them and I could let a pair of them go for $5.