The cheesecake made it! I could not afford the overnight and sent it two-day through UPS. I prayed over it! :)
The idea that came to me was foam insulation panels. Home Depot had 2' x 2' sizes. A friend gave me a box that was 1' x 1' x 1'. I work in our local newspaper office and we have this old cast iron paper cutter. It worked perfectly for cutting the panels into 1' x 1' panels. I cut a circle a bit larger than the cake in four of the panels.
The cake I wrapped in three layers of plastic wrap and two layers of aluminum foil and then froze it. I purchased also an insulated shopping bag to add more insulation to the cake when shipping. And I purchased two blue ice packs. I put them on a panel of insulation and drew around them to cut a hole for them to "snuggle" in.
When it was time to ship, I placed a panel in the bottom of the box and then added the four panels with the circles cut into them. The cake was wrapped in the shopping bag and then placed in the middle of the four panels. Perfect height! Then I placed the ice packs and the next cut out insulation panel on top of the protected cake. Then an uncut panel on top. Sealed up the box and sent it out.
My daughter said the cake was still cold and the packs still had ice in them!
Everyone there enjoyed it!
Thank you for your help!