Kim,
Some of the most popular beads to make these with are the Czech glass firepolish faceted beads, on page 150 of our catalog:
http://www.rings-things.com/Catalog_Pages/150.htm.
My favorites are the new 2-tone colors.
Also, especially with Sterling Silver charms, the Swarovski crystal rondelle beads are very popular:
http://www.rings-things.com/Catalog_Pages/174.htm[/url].
For some help in picking colors that go well together, purchase a Color Wheel from an art store. They are usually about Ū. Just turn the wheel to the color you want, and it will show you 2 other colors that go well with that color. (Then all you need to do, is translate the paint color names into our glass bead color names, but the color pages in the middle of the catalog - and on-line - should help you do that.)
And to make the 6 wine charms per set, there are a couple methods. If you find 6 different charms in the theme you want, then you can either make all 6 with the same colors, similar colors, or contrasting colors.
If you find 3 charms in the theme you want, then perhaps make 3 with one set of colors, and the other 3 with contrasting colors. Or three with blue/green, and three with blue/purple. Or, 3 with vivid colors, and 3 with pastel versions of the same colors.
Basically, experiment and have fun! Start with your own favorite color combinations, and then expand into other color combos that you think people are likely to ask for.