Use vinyl transfers to make semi-permanent decals for words you don’t want to have to rewrite everyday. 36 Clever DIY Ways To Decorate Your Classroom. I also like the ribbons window treatment & iron-on fabric letter ideas.
Might be a good way to start the year (especially if you have a lot of new students). I would allow students to pick some maybe) that they are willing to have shared. Then you could use it as an ice breaker also ~ Nice prompts for back to school.