Mr. Rogers seems like the sort of thing a lot of people grow up on, then start making fun of because their friends are doing it. Then they grow up more and realize it was an awesome show.
As for the topic, I can't really guarantee I'll remember to wear a sweater, especially if it isn't cold. However, I was always inspired by the work of Johnny Costa on the show, performing and improvising the music live every episode. I think it would be appropriate to put together a small remix project of the Mr. Rogers' Neighborhood theme. 2 weeks isn't very much, but it's a short theme, and I think a lot can be done with it. Here's a video, in case you need a little inspiration to get you started.