Cake Bling advice

I am interested in purchasing cake bling from a 2011er and was looking for some more info.
How much would I need for my boK & for the cake?
Where can you purchase it if I need more?
I want to do something like this...



Thanks ladies

i bought 5 yards from b&q trimming in midtown.

once i get mine back from the RH, i'm selling it.