THIS IS STUPID EASY.
Split vanilla beans lengthwise leaving the top inch unspilt (to keep the bean in one piece)
Scrape seeds from inside the bean and reserve for bottle. This is optional. If you do not plan to strain your extract the seeds will stay in clumps so not really pretty.
If necessary cut beans in half cross wise to fit in bottles
Place beans in bottle or jar. I used 2 whole beans for 4 ounces of vodka
Fill with vodka/alcohol so beans are fully submerged. Remember those cute little funnels you bought and never used? Break them out now.
Cap and store at room temp away from light. Shake occasionally.
It is up to you if you want to strain the extract or leave the beans in the bottle.
Depending on when you started you now have weeks, maybe even months to design cool labels for your vanilla.
How easy is that?