I'm planning on ordering a soap mold (3 x 4 x 1) from Wholesale Supplies Plus. But it's too big for the soap box (2 3/4 x 3 13/16 x 1 3/16) on that site. The soap I ordered is mp. What's the best way to wrap it? Saran wrap? I want something nice and neat, and for selling later on (after everything's been tested, etc). But also for storage.