Things You'll Need
Instructions
Choose your item. With the wide variety of glass display boxes available, the first decision you need to make is what exactly you are going to display. Different items should be displayed differently, and can greatly influence the style of box you will need to look at. For instance, antique pens can be incredibly beautiful, however the will not look good in a 4 by 4 box. They can, however, be housed beautifully in a flatter glass case, cushioned in foam and velvet, with a lid that closes to keep the dust out. This box can either be placed on a table or hung on a wall.
Choose the style of box you want. This boils down to how you want your item to look. If you want it to be seen from all sides, then choose a clear box. If it being placed on a shelf, but you want to be able to see the back, choose a box that has a mirror panel in the back, allowing the viewer to see the detail in the back of your item. If you have multiple items that should all be put together, but you want to include a picture of who gave them to you as well, consider a shadow box. If your items are military in nature, there are special boxes designed to hold flags, medals, etc. Decide iff your items will fit better in a rectangle, octagon or square box. Also decide if you want the base to be wood, clear plastic or metal.
Measure your items. Your collectibles need room to breathe, so measuring them and placing them in the proper sized display box is imperative. Use a tape measure to measure width, height and length of your item. Add 2 inches to each measurement and you will have the minimum size of the box you will need. Keep in mind that if you are placing more than one item together, you will want to arrange your items on a table as you will want to see them in your display case. Then measure the total area of your grouping.
Purchase your box. There are many sites online that will be happy to help you should you come up with an unusual size (see Resources below). If you have decided on a relatively standard size, try calling your local collectible store for assistance.