I grew my mung beans sprout on my own kitchen counter in as little as four days. Sprouting mung beans is just as easy as ABC (procedure on the video from Da1 to Day 4). While using an ordinary clean empty bottle from mayonnaise (or soda drink) as "sprouter" can make the job mindless, you don't need any special equipment to be successful. You can start growing sprouts in a mason jar, empty bottles of soda, ingredients with a good size. This is a typical example of hydroponics gardening.
Harvest on Day 4 or more couple of days, it depends on how much size you want on your sprouts (length of the tails).
Simple procedure is on the video. Enjoy!