With masking tape and paint, simple concrete containers can be transformed into stylish planters in no time at all, allowing colourful geraniums to really stand out. To create these customised planters, cover the containers with masking tape so the exposed surfaces create a pretty pattern. Press the masking tape down firmly so no paint can run underneath. Then spray the containers with waterproof paint and leave to dry. Remove the tape and plant up your finished vessels with easy-care geraniums. You can vary the patterns and colours of the planters to suit your taste and adapt them to any style.