Anyway, here is the process my sister-in-law taught me years ago. I use a lot of vanilla and keep a bottle or two going all the time now!
Ingredients:
vodka
vanilla beans
To get started decide how much you want to make. I used 30 beans in 1.75 liters of vodka.

1. Dump a little vodka out of the bottle into another container to make room for the beans. (What you do with this is your own business! I keep it in my cleaner cabinet as it works well to remove sticky or gummy things.)
2. Slit each bean longways and open up to reveal the gritty part.

3. Put beans in jar.
4. Replace lid and label with date.

5. Store in a cool, dark place for at least 6 months. I like to try for at least 1 year. If you think of it, give it a shake about once a month.
Here is the bottle I'm currently using and the little bottle I refill and keep by my spices.

I got to thinking that tequila is plant based instead of grain based like vodka, I wonder if that would work for the base?