We currently have our sensory table filled with brown rice, sea shells, and a collection of containers for scooping & pouring.
TIP: An affordable way to make a sensory table at home is too purchase a utility bin from a home improvement store. They are almost exactly the same size as the sensory table bins you can find from a school supply catalog but are a fraction of the price. The bins are typically found in the tile and/or cement supply areas for mixing concrete. You can place it directly on the floor or raise it up off the ground with a frame made from PVC piping.