Plant stands. Build some of these to attach to the pallet fence.
sweet cottage cupboards with Jadeite collection
DIY foyer door storage
Pallet Wood Planter
lattice privacy screen planter
2, 3, or 4 16" large planters gardening system, large planter, pot, raised garden bed system, strawberry, patio, condo, urban, free shipping by RopedOnCedar on Etsy https://www.etsy.com/listing/171499237/2-3-or-4-16-large-planters-gardening