You can get Wiltons in the cake decorating isle at a craft store like Micheals.
It just says glycerin, but Wiltons emailed me saying it was "plant derived" not animal.
Holy cats! Here I am, less than two weeks into vaping and looking for help with what appears to be a PG sensitivity, and you've just given me a REALLY useful bit of info!
I had been reading about VG alternatives to PG-based e-liquids and had just ordered a bottle of the Johnson Creek "reduced PG" formula, in hopes that that would help, but I was also shopping around for entirely PG-free liquids when I came across your post.
I'm a baker. In fact, I'm a vegan baker. So as it happens, I have a bottle of Wilton glycerine sitting right on my kitchen counter, used to make fondant and to thin gel icing colors when they start to dry out. I had already called the company years ago to confirm that neither their icing colors nor their glycerine contained any animal-derived ingredients, so, yes, this is just VG.
I also have a whole shelf full of various extracts and flavorings I use for baking.
As it turns out, I also had a fully-charged blu (I know, I know, but it was all I knew about and it's actually working pretty well for me, PG issues aside) battery and a brand new blu atomizer sitting right here, plus the empty mouthpiece they ship the atty with. I figured, hey, at worst I kill an atomizer of an e-cig I'll likely replace with a different mini pretty soon anyway, right?
Using the "dip" suggestion in another thread (the blu has an exposed atty wick, very convenient for dipping in e-liquid), I mixed something like 10 drops of glycerine with maybe 5 drops of orange extract in one compartment of one of the zillion unused contact lens cases that always come free in the box with my lens fluid. I screwed the atty to the battery, dipped the wick into the glycerine concoction, attached the empty mouthpiece, crossed my fingers, and took a tentative drag.
As I said before, holy cats! It totally worked. TONS of vapor, a nice subtle orange flavor, and so far none of the chest tightness/lung pain that seemed to be caused by PG. Of course, it's early days (minutes?) yet, but after several drags I'm thrilled with the result. At some point I'll likely want a tobacco flavor, and will probably go with Vermont Vapor or Johnson Creek once they get their new all-VG recipe together, but in the meantime, I'm just happy to be vaping again.
Thank you thank you thank you!