Create smoke from your hands. (with hidden gadgetry)

I was contacted by a magician for technical advice regarding a manufactured smoke effect that was proving to be unreliable. It got me thinking about how I could do the same effect using whatever I had lying around. It just so happened I already had a small low-voltage air pump and some thick silicone vacuum tubing already, so I added an e-cig and the job is done.

You can treat me to magical coffee and cookies at https://www.patreon.com/bigclive

The air pump is from a Chinese eBay seller called ynaan at:-
http://www.ebay.co.uk/itm/311397715984

The silicone hose is specifically the 3mm internal diameter vacuum type sold for cars and the UK listing I got it from was:-
http://www.ebay.co.uk/itm/221489625083