Bonsai Stand in Portland Metro Area

Does anyone in the Mirai community know of any resources to buy bonsai stands or benches in the Portland metro area or online? My dog recently discovered how tasty biogold is and has been going after my trees. Ideally would love a bonsai bench with a back to it (was planning on displaying next to a retaining wall that my dog likes to jump up on).

Contact the Bonsai Society of Portland. They may know of members interested in selling theirs or could point you at some resources.