If your house is full of tupperware and you're not in need of any items, you might want to set up a honeymoon registry. My pick is Honeyfund.com because it's free and easy to use. There are lots of honeymoon registries online, but many of them charge fees.
You can list parts of your honeymoon, such as the air ticket and hotel breakfast. The honeymoon registry is a great way for your guests to chip in for an experience gift.