Suzi, I shipped with cuttings just a bit stronger. I dumpped most of the soil, and made a ball with soild and roots inside of a newspaper, and roll it tight so the roots dont dance, take the cutting to a cardboard or the box, those bubble wrapping plastic work also, tape to it, tape the cutting, tape the bottom newspaper ball also. roll it and put inside of a plastic bag, and ship the quickest - they can survive 3-4 days bandled up, but should not take longer. those small dental higiene cups work as a minor cup for the roots and soil also.
those cuttings of yours are in a bad time to travel... very iffy. I received an exploded plant, so I don't suggest sending soil. with it, unless absolutely necessary.
if you shake the soild out, you can put styrfoam in and tape the soil inside the cup they are in. an make a tight roll- shipping should be $6-8.