The Garden Igloo Kit. in a few different versions. could be a greenhouse +/or alternative to tent accommodations to house a few more summer retreatants. not particularly cost effective though, in my humble view.
Modern concrete walkway interplanted with Dianthus. (I like the plant, but wouldn't put it in the walkway.
Veronica oltensis (Thyme Leaf Speedwell) is a beautiful, tenacious, small scale groundcover with thin stems of tiny evergreen leaves that cover themselves with blue flowers in early to mid-spring. Veronica oltensis is a little beauty that serves as an excellent crack filler between flagstone or pavers. Thyme Leaf Speedwell is a drought resistant/drought tolerant perennial plant (xeric).