I am thankful for dirt. You know, the type that's in the yard and you can make dirt castles out of. I also like the sort of dirt that you grow plants with in the garden. I've even written a haiku about dirt.
I Love to plant seeds.
Dirt between my fingers
And between my toes.
I like mud, too, especially the sort of mud that's so wet that you can make drip castles out of it. Drip castles are fun.