This wonderful wood sliced walkway was photographed by Katy Elliott during a trip to the Portland Flower show. Assuming you had some rot resistant wood, this would be a great use of old or found material. See this and some other finds from the show after the jump.
Katy mentioned that they were a bit wobbly when stepping on them so a firm base of level sand would be advisable.
Below are some finds pictured on KatyElliot's blog from Snug Harbor Farm. While Maine is a little too far for most of us to purchase from, we're a sucker for toparies and miniature succulents, and these are well done.
KatyElliot.com. Originally published 2009-06-16 - CB
Must-See Small Cool Homes: Week Two
Beth's Romantic & Retro Residence
Good Food to Share 
The Big Book of Small, Cool Spaces 
Apartment Therapy Presents 
The Eight-Step Home Cure 
Shaw's Original Fir...
How to Bake a Potato: Three Easy Methods
How To Cook Tender, Chewy Wheat Berries on the Stovetop
A word of caution on the wood rounds--my landlord had some lining the path leading to my apartment and they were as slick as ice when wet (the surface of the wood would get slimy). Perhaps the stuff used to seal wood decks would help...?
that walkway is exquisite!
This is lovely. I've got a couple of those rounds in my garage just waiting for a project like this!
i have some old wood stumps but nothing to cut them with. maybe i should look into chainsaw rentals...?