These things are amazing!!! They're the only sure fire way to send him cakes and baked goods that will last the ridiculously long delivery time.
They're easy too! Pick up some Mason Jars and put some box cake mix in them and bake them with the lid off just like they're a glass pan. You can get creative and cook breads, brownies, muffins, just about anything. The thing that makes them last so long is that after you take them out of the oven and you put the lid on the jar (immediately) the heat seals them up. Just listen for the pop. They will keep for up to 3 or 4 weeks. Put them in the freezer before you send them and they might keep even longer!
I found some recipes but really, you can bake whatever your specialty is!
Visit Recipe Gold Mine and the site will tell you a little more about them. But, if all else fails, Google it!