I need help/suggestions on making fondant "curtains". My daughter wants a 3 tier HSM cake for her 9th birthday, NO PROBLEM. Until she tells me she wants it to look like the poster on her wall. I've got everything worked out on how to do it, except the red curtains. Any ideas would be very helpful.

Use fondant and drape them. : ) Can't wait to see your cake.

Not that I'm a super expert, but I have done drapes before by using dowels underneath the fondant to achieve the desired shape and adhered them to the plates of tiers with royal icing. Oh, I also reinforced the curtain by adding a gumpaste "hanger" at the top that hung on the plate.

I would use a fondant/gumpaste mix, do pinch pleats at the top, and let dry before standing them up and pressing lightly into the cake (or gluing with gum glue if the rest of the cake is covered in fondant.) Roll out a narrow strip the same color as the top of the cake, let dry, and lay across the top of the pleats so you can't see them from above.

you can lay rolled fondant over a series of paintbrushes to get the drape impression..pinch the ends together to create a drape on the side of a cake..attach onto a freshly covered cake with cooled boiled water..it will stick.... Curtains done similarly but only pinch one end to look like pleats of a curtain.