Many moons ago, while sorting helping me sort my collection, my wife (MrsJ) came upon a random Hana Kami. This prompted the question "Is this flower vomiting up other flowers?" Recently while tinkering with other decks, I decided I should try to make my wife's small pile of cards that was her "vomit deck" into something. I spent a few weeks (with the help of Ulka) finding all the cards that had "vomit" coming out of the mouth of something within the art. To make sure I didn't miss anything I expanded this to include spit, smoke, fire... really anything that was in the act of coming out of the mouth. Below is the list of cards I could find. I'm pretty sure I missed some as I could only do these 2k arts at a time.... did you know there are over 10k different arts for JUST creatures?! Obviously, Chaos Orb is a no-go as it is not legal in commander.
This deck's creation is going to be a multi-step process.
Find all the cards that have "vomit" in them
Have MrsJ dig through the final list of cards to make her "is/isn't vomit" cuts
Make a "functioning" deck
I'd like suggestions on anything I may have missed, as I'm still in the first step of this, Editions, in some cases, are specific as some printings have art I want, while others don't.