You can put lots of different kinds of information in your Item Description. The first sentence or two should of course be descriptive, as in color, size, components, etc. After all that, however, is an important paragraph many people neglect.
That's right. Sometimes people buy things with no obvious purpose for absolutely no reason, but unless you are in that kind of specialized market (gag gifts for instance?) don't risk not telling potential buyers all the awesome things to do with your product. When I list something like wine glass charms, such as the one to the left in one of my Eclectic Wine Charm sets, I spell it out. This seems obvious, but a reaction I get frequently is, "Oh, how cute, but I don't drink wine."
So, I spell out the uses. "These look great on coffee mugs if you're having friends over for a brunch or tea!" or "Even if you're only having water or sparkling cider, these charms will make it a party!" and "Kids love choosing a charm that will be 'theirs'! In the bustle of changing places at the dinner table, don't lose your glass!"
Now think about what you sell. Do you make little dodads out of clay? Turn them into charms and encourage people to go beyond necklaces to make cell phone fobs or cute zipper pulls. Use the Comments to post what you make, and I'll try to come up with an alternative use!