Viva paper towels and a fondant smoother--works great!!! Thanks Sugarshack!! If you have the $$ to spare, get her video The Art of Buttercream--you will notice a huge difference in the looks of your cakes as far as smoothness goes by using her methods!!!! Such a great video especially if you're just starting off or if you've been doing this for years!
I haven't tried the Melvira method (though I am curious), I've been happy with the results of using Viva & a fondant smoother. Not sure if this is how Sugarshack does it, but I let the BC crust for 5-10 min (in fridge if it's warm in the house) then use rub my hand over Viva, gently, to begin to smooth, finish off by gently using the fondant smoother over Viva. I actually plan ot buy Sugarshack's DVD soon, I want to know how to get those razor sharp edges.
Thanks for the feedback...I think i will try the foam roller method. i have my first wedding cake to do on valentines day for my niece. she want 3 tier heart cake white buttercream and red and white roses with red gumpaste ribbon the bottom of each tier. how can i make the gumpaste ribbon shiny like satin ribbon? i was thinking of using luster dust and steaming it????
No offense to Melvira, but after using that method a few times, I went back to a Viva paper towel and fondant smoother. I can get a much cleaner finish than with a high density foam roller, although it is fun to do. 
For your gumpaste ribbon, you can paint it with luster dust and vodka.
Quote by @%username% on %date%
%body%