Hi Radio 5,
I am newly ordering from ECBlendflavors.com which have a margarita "wizard." I haven't tried it yet, but I love blue margaritas! They also have an all natural & organic (read 100%VG) root beer. The coolest thing about ECBlend is that you can create your own flavors, via their "create your own wizard" where you have the ability to combine 4 different flavors in varying percentages, change the base, add menthol, extra flavor, sweetener, etc., etc., etc. So far, they have the most options for customization I've found yet. For me, this is important as I am a several-decade ex-smoker and my buds need more punch in the flavor department, especially with individual fruits.
They also have a "novelty" line, which includes bacon, butter, carrot, dill pickle, black pepper, pizza, roast beef, Popcorn, Tomato Soup and Worcestershire Sauce (yuk).
Beyond that, they are very reasonably priced, compared to some outfits.