There's no end to what you can do with ugly ceilings. you can buy wallpaper and stretch and pin it to ceiling. you could buy fake flowers and create a lovely "bower" effect......fabric is probably one of the easiest and coolest things to do. You can attach it flat or build a frame work and loop the fabric and let it sway a little. there is a very expensive restaurant in Santa Fe that did this. And fabric is cccccccchhhhhhhhheeeeep.....a thin billowy one works best.....beautiful. the frame work is minimal and very easy to do....you could even string really strong cord across a few times.......good ceiling covering!!