Drink Dispensers with Chalkboard Labels

I decided to add to the drink dispensers. After I came up with the idea I realized I must have seen it in a magazine using the same dispensers from Target. I just can't locate it. I taped off rectangles and rolled on a homemade chalkboard paint. I used plaster of paris and acrylic paint. I then primed them by rubbing chalk all over and wiping it off.