We have one of these and someone put a piece of a popsicle stick and wrote "Rock Concert" - Love Rock Art.Garden Trinkets - Awesome Ideas, Projects and Tutorials! Including, from 'instructables', this creative 'garden thing' project with rocks.
Mixed paving materials - I like how this looks, plus it makes repurposing easier! CT - note: Could get some pavers that match front walk and combine with other materials to tie both looks together. Definitely want the walk to be permeable.