Wire edges cut into the cake. My baker pulls them out. Satin gets really greasy on buttercream. I think people must photo shop cake pics that have clean ribbons on them! It just looses it's sheen and gets darker, if that is not a problem then you can use any ribbon. I prefer fondant ribbon!
Fondant is safest, or washed & pre-oiled satin ribbon (the ribbon is bought a 2-3 shades lighter than the desired color; rubbing a little oil on before attaching it prevents any grease spots from the icing showing though).
is fondant ribbon more expensive than actual (washed, pre-oiled) ribbon? I'm wanting a ribbon wrapping around the bottom of each tier, and I'm using buttercream icing instead of fondant because I think fondant tastes like crap and it costs more.
Using real ribbon is easier than making one out of fondant, but it's up to your baker as to whether or not he/she wants to charge extra for a single fondant ribbon around the base of each tier.
I've used regular satin ribbon and it worked just fine... but my amazing buttercreme dries with kind of a crust (sounds gross, it's not... it's best for decorating) so it didn't really affect the color of the ribbon
Re: ribbon for cake?
Glenna Harding Photography