Made my own containers from old ceramic sinks ...now look like stone troughs. (a legacy from Geoff,Hamilton)
Lewisias are lovely in small terracotta pots....planted slightly on their sides.....in very well drained compost with added perlite. Placed in the sun and they glow
A nice shrubby plant is euryops acraeus. I love this silver grey dome with bright yellow flowers. Again in a terracotta pot on its own.
Convolvulous maritima is a lovely trailing plant with velvety purple/blue flowers from mid summer to autumn. Have this growing by my drive entrance and it is an eye opener.