One large mock-up of a program can be displayed at the ceremony site - usually near the entrance - for guests to read prior to the ceremony, or the officiant can explain different parts of the ceremony such as cultural traditions.
Whether you've paid top dollar for a vintage pattern or a brand-new commercial pattern, or gotten one free, you should still do a mock-up before you start cutting your suit fabric.
If you want the florist to make the arrangements for you, ask for a mock-up before all of the centerpieces are completed to be sure you like the final product.
They do, of course range in difficulty and clarity, so it's best to take some time and make a mock-up before you invest in materials.
Muslin is easier to work with than Lycra, but a mock-up will still give you a good idea of the overall look and fit.
It's always best to make a mock-up of the garment in muslin first, even for a non-fitted piece like pajamas.
A mock-up is done first so that you can get a sense of the fit and alterations can be made if necessary.
You should also do a paper or muslin mock-up before you start cutting up organza or chiffon.
Again, make a mock-up before you use your actual fairy wing fabric.