you could
-paint faces on the pots, put dirt and grass seeds in them, and then wait for the grass to grwo. when it does,the "person" will have hair!
-make scarecrows or soldiers by gluing two pots together with the wide open ends gued together. divide the top pot up with paint to make a hat and face, the midsection is the torso,and the bottom third is the legs. (this is kinda confusing)
-paint the pots with decrative paint, then cut a lid out of cardboard or use a clay saucer and decorate the top with tiny silk flowers. you can keep whatever you want in there: paperclips, treasures, candy...
the possiblities are endless...just stick whatever round object you can find that will fit in the mouth of the pot...maybe a clock head! anyways, hope this helps!