Velvet... get a bag of popcorn kernels and try making it on the stove.
You don't need any special poppers or doohickeys, just a metal pot with a lid. Pour about 3 TBSP oil into the pot (I personally use slightly less then 2 and use Olive Oil as I like the taste and for health reasons) and 1/3 cup kernels into the pot. Put the lid on and shake or rock the pot over a medium heat until the popping slows.
Gas stoves are the best, you literally rock the pot up and down on the burner the entire time. I have a crappy electric, so I gently shake the pot for a few secs, then rock for a few secs, than repeat.
It's a really cheap way to see if you'll enjoy air popped as all you need to buy is the popcorn kernels.