For my gardening sensory bin I ordered small plastic planting pots and a Safari Limited Toob with insects. I removed the insects kids are usually afraid of (the cockroach, spider, and milliped), added some toy gardening tools that I accumulated over the years (I couldn’t find a cheap set like it to link to), and added miniature vegetables from the Li’l Woddzeez garden set that I had on hand. This year I couldn’t find any black kinetic sand so I used black Pluffle (I bought 2 packs and saved the white half for later).
You can find the rest of my themed sensory bins here.
And you can find the rest of my gardening-themed materials here.