So easy: tape your pots into a design, paint within, let dry, and plant your favorite succulents or cacti with little bit of extra potting soil and water. I used paint I had lying around the house and bought 2 inch succulents for 1.99 each at a local nursery. They recommended watering them once a week.
We have a little bit of concrete space in front of our apartment (glamorous, I know) where I'd already started a mini-garden with an herb pot and a pallet box (which I found for free) holding some paperwhites & wildflower seeds from a wedding. I think these little guys make it complete! I love seeing them when I come home! Now here's hoping I don't kill them. I didn't quiiiiite inherit my mama's green thumb.