C.W.
One of the mother's from my youngest son's class always did the cutest little things but all I can recall was for Christmas. She took plastic canvas once and filled it all in with yarn leaviing a cuy out hole for a candy cane and clipped ears and made it look like a mouse. She also would crochet stockings and put in small candy canes. She made M&M people and stitched on small M&m bags. I always did things like pealed apples or bags of popcorn. Teachers liked that better than cupcakes and candy. One year when I did the pealed apples I also had melted carmel that I dizzled over them. I personally use to go and help with the parties so when I needed more melted caramel I would just run to the teachers lounge and heat it up and run back. I would take cupcake liners and scoop apples into them to serve. Small paper plates would have worked too. I pealed the apples before I left home which helped speed up serving. Ants on a log is also a good party favorite. That's pretzel logs rolled i peanut butter and rolled in raisins or celery with peanut butter and raisins.
Have fun. That's a must make it easy.