On Friday, April 28, 2017 at 11:03:44 AM UTC-4, Tomos Davies wrote:

Have you built your own smoke machine for around $100 or less?
How did you do it?

There are a bunch of sellers on ebay providing a pretty good device for $80 including freight. For the time and parts, you can't beat this. They also include a pressure regulator to make sure you don't blast anything in the evap system.

http://www.ebay.com/itm/EVAP-Smoke-M...AOSw32lYvdZ C