If you want to ship soda bottles, you can ship the bottles with liquid in them. Before shipping soda bottles, you may want to consider the cost of doing so. The glass bottles are heavy, but shipping the bottles with soda in them will increases the weight of the package. If you are certain that you want to ship soda bottles, you can easily do so by following a few steps.
Get a box that is designed for shipping bottles, such as a wine bottle box. You can visit local wine or soda shops to see if they have any boxes you can have, or you can purchase your own boxes.
Buy some packing tape and bubble wrap or packing peanuts, if you don't already have some, so that you can cushion the bottles against movement. This is especially important if using a wine bottle box, which has areas that are slightly larger than a normal soda bottle. Cover the bottles in bubble wrap or fill any gaps between bottles with packing peanuts. Make sure there is no room between bottles -- this will minimize movement. Close the box and secure with tape.
Pack up the soda bottles and take the box to your local delivery service counter, such as UPS, FedEx or DHL. The USPS does not let you ship glass soda bottles, which is why you must use a delivery service.