I’m searching for a source for these again. I have found a few over the years that are VERY cheap and not worth the time and effort it takes to make these. I take normal car vinyl, cut the logo, weed out what I would normally use with tiny tweezers. then place the image over the flask, tape off every nook and cranny and place them in my sandblast cabinet. There is a fine line between success and failure. Too long or too close and it blows out the vinyl. They make special material for doing this process and I have actually used it making tombstones for pets, blasting 1/4″ deep into granite! This material doesn’t work with very small or fine lines.
I will update the thread in a day or two, if I can get enough to satisfy demand, I only have about 6 right now.