here is the extension to my ealier post on Shadow Boxes. Here are some DIY tips for making your own memory boxes.
The easiest way to put together a shadow box is get a frame like Ribba and use some creativity like Erika Kern.
This one is a Vacation keepsake box from Martha Stewart. Yes some times DIY posts are incomplete without her touch.
or if you are more of a video person, here is a nice one
Here is one is from Apatment Therapy made from a candy Box. Some times you really get lovely gift boxes or sweet boxes which you do not feel like chucking. This is what you could do with it.