How to use the Elf Bottler (with video)

pollardfreek wrote:
Does the bottler only bottle the elves? Because I've already done the bottle 20 elves task but I haven't gotten a single cogwheel yet using the elf bottler. :(

It bottles elves, and I've read that 30% of the time it will give you cogs too. Tapping them individually gives the same results.
You should be seeing cogs very soon, if you still have not received one.

This device is handy in areas where you have something that you don't want to tap but still want to catch the elf/elves.