DIY - Glow in the dark pots with mums for fall/Halloween. Buy a flower pot that you really like and use Rustoleum's Glow-in-the-dark paint to paint the pot. During the day, the paint will absorb the sunlight and at night the pots will glow.
Not crazy about the polka dots but cute idea! To make Tipsy Pots, you simply get whatever length of rebar you want (allowing for or more to be IN the ground). Then just slip the terra cotta pots over the rebar and and "tip" them as you go up.