We went to the equipment rental place near our house and they gave us permission to walk around the yard and look at all the (relatively small) vehicles. It was so fun Benji didn’t want to leave even with completely soaked pants and socks.
And, Benji discovered that our huge hosted of plastic bags does have a good use after all:
Don’t worry, we supervise Benji carefully while bags are out. He likes to dive into them all piled up like a leaf pile, disappear into the pile, and have us say, “Oh, Beeeeenji, where are you?”, then find him and say, “Ah-ha!”