A 3D printed inductively charged "candle".
Beatiful Candle with ESP8266 and WS2811 BreakOut
Create a candle array with NeoPixels that can be decorated for each holiday.
The Scent-terrific Smart Candle is made of wax, flickers like a real flame, emits scents though a wax warmer, and is controllable by Alexa!
Make the ESP8266 board sings "Happy Birthday" tune, lights up NeoPixel to simulate the candle, and better yet you can blow the candle.
I'll show you how you can build a decoration light yourself. I drew the design and published it on Thingiverse.com.
Create a flickering candle that you can blow out!