This is my solar workshop thing.  I’ve been working on it since a little after Christmas–i got it for Christmas. Right now I’ve made a solar rock-carrier tractor.  It used to be just a plain tractor, but we added a sort of a bed on it so I could carry some rocks from my rock collection.  The two biggest ones are on it in this video.

My smallest russian doll in my set of matryoshka dolls (and the last one) is driving it if you look closely.  But I zoomed in so you could see it a little better in part of the video.