At upper left, this is one of the recycled ornament balls. The silver glitter is on the inside, and the red stars are glued on the outside. Here's a closer look at two others.

At lower left is a simple geometric shape made from stiff cardboard with cloth glued over it. Again, here is a closer look.

At the right is a simple disc made from two clear plastic yogurt cup lids with pictures from Christmas cards. Here are two such ornaments.