You can buy new pots or you can try to improve the ones you already have (this way you will get a new look for less).
Here is 5 simple ideas to embellish outdated flower pots:
1. Glue an ornament, a button or other decor items
2. Tie and glue a decorative rope around the pot's neck
3. Make a pot necklace
4. Cover it with mosaic or tile
5. Simply repaint the pot in your favorite color.
I was replanting my plants yesterday so here is more on idea 1, a flower pot ornament.
You will need:
deco cement glue
a flat button, about 1 1/2" to 1 3/4" in diameter
a cotton ball