I was also having a similar issue as this although I wasn't getting a spicy taste, thanks for sharing im going to try your solution and see if it doesn't help me as well.
It's just pure common sense that if you use a trademark of a corporation without their consent you're asking for trouble. A corporation didn't spend all that money to create a brand name and positive image for their company for some cheap B&M store to come along and take the brand name and profit from it without spending a single dollar for that right.
This is a fast way to get these juice's taken off the shelves, I can't seem to think that whoever owns the copyright of these characters is going to sit by and watch their product image be associated with something that could potentially damage their bottom line.
I am like yourself OP quite new to vaping and also experimented to see if I could do any "vape tricks" but quickly realized that you need a very dense vapor in order to have a chance of accomplishing this.