Decorative pebbles add a touch of decorative flair to any property. Transforming even the most mundane exterior environment by creating a rich ornamental oasis, attractive pebbles and cobbles make a great addition to any landscaping project.. Here at Mainland Aggregates we have a selection of attractive cobbles and pebbles that do more than merely serving a purpose â€“ they provide a focal Decorative Pebbles & Cobbles Suppliers | Huge Selection Please note: You are currently browsing img decopak scottish pebbles decorative stone bulk bag one that is 800x800px in size. This image is listed in decorative garden pebbles uk category. Decorative Pebbles Cobbles Suppliers Huge Selection, 800x800 in 147.42 KB.