When I get together with a bunch of 3rd graders and want to make some crafts that we can sell at our annual Latern Fest in November - crafts that look good but are simple to make - I almost always turn to one of my favorite sources: www.craftideas.info. For any season they have dozens and dozens of ideas for crafts, decorations and cards/invitations made from paper, fabric, metal, beads, tree and plant materials, etc. They really are a treasure trove.
Here are some of my favorites that I've done:
... and others that I will do soon:
... and this one that Craftideas forwarded me to http://www.dreamhomedecorating.com/paper-christmas-ornaments.html: