#Engadget is currently hawking the USD$130 #EmberSmartMug as a great gift for your teacher. Price aside, this is just a cup that keeps your coffee warm.

No, I can't put that price aside: this is a $130 cup that keeps your coffee warm.

This is a frippery at a price that even the #SharperImage would have been embarrassed about.

Just buy them a bloody thermos for $30 and let them use the remaining $100 on supplies that the school board is too cheap to pay for.