Ohhhmygosh Eddie Ross really is fantastic. Look what he did with SUPERMARKET CARNATIONS - the world's most unpopular flowers maybe.
First he stacks 3 simple cake stands:

He bought floral foam, soaked it in water, and placed it on top of the cake stands:

He cut the stems of the carnations and arranged them into the foam:

And look at the final product:

He uses it as a mock cake, but I think it would be a really pretty centerpiece for a wedding shower!
Eddie Ross is really so smart!