I also am getting ready to give DIY a try. I ordered supplies from Wizard Labs. High Desert Vapes also has decent prices. Because I also have a candle business, I had a case of dropper bottles (from specialty bottle) sitting here staring at me. How can I resist that? lol
Just an fyi, Specialty Bottle has great prices because you get volume discounts BUT this is the busiest time of the year for candlemakers and bath/body businesses. It could take up to 10 days to get your order from SB. It doesn't hurt to order a few plastic bottles from where you get your diy supplies from just to have on hand.