The Mitten or The Hat writing
I too have a low class. I took the last problem in the Hat, where Lisa's clothes were on the animals and the children were to write a solution. We talked about what they could be, then they only had to write a sentence or two, but it was their idea.
I have thought of having them design a mitten of their own and writing a couple of sentences describing the mitten.
You could also have them write their own story about losing a mitten or hat of their own. How did they, or would they feel if their favorite grandma made this mitten and they lost it. Who might have picked it up? A story could be a real story instead of fantasy and the children will do well.
Have fun!