You speaking as preschool teacher (one of my many hats) I can say I've received my share of flowers and potted plants as thank you gifts. None of them compares to this one though.
Those are gift card blooms. The other room parent, J, and I for Critter's class asked all the parents to give a gift card of any amount to any place (we gave a few suggestions). Then J bought a pot and I added silk flowers to the arrangement. We presented the whole ensemble to the Critter's teacher yesterday. She loved it! Of course.
I picked up the boys early on this last day of school. The Negotiator's teacher gave me GC for being room mom. Super sweet and totally unexpected. As I was leaving Critter's classroom his teacher pulled me aside and said, "I've really enjoyed getting to know you better this year and I hope you've come to consider me more of a friend than a teacher." I busted out crying. I am SO sappy.