We’ve already covered a wide range of things that can be made with salvaged shipping pallets. Use the built-in search engine (now much improved!) to get ideas for pallet furniture, wood cladding, ceilings and other items. This blog post lists some additional uses for pallets.
Craft projects such as children’s toys, mirrors, coat racks, magazine racks, boxes and other small household items
Slats for shade (nail to vertical poles or 2x4s with about 1/2” air gap between for ventilation; good for screened porches, outdoor showers, privacy screens…)
Slatted window screen (angled slats allow ventilation but block rain)
Pallet wood shingles (requires jointing edges for a tight fit; note – untested idea, experiment first)
Fences/animal pens/dog houses
Image source: Amish Furniture Factory