So you are a 2-pack a day smoker and it's your birthday. Congrats, you lived another year. Unfortunately you lack the lung capacity to blow out your candles. Puff the arduino dragon can help.
Puff scans the area to find flames then attempts to "blow" it out with his built-in fan. The problem is that Puff's courage only goes so far. If he fails to blow out the candle in two sweeps he panics and runs away. Apparently, Puff had an incident with kids and some Chinese firecrackers a few years back and now he suffers from post-traumatic stress. Hit the following link for a basic visual guide that can help you build your own Puff arduino dragon. [Let's Make Robots via Hacked Gadgets]