CDC paper. The company responsible for one of these poisonings is likely Oh Sweet Art, located in Palm Bay, Florida.
Their decorative “non-toxic” powders, which may contain up to 25% lead, are still available on Amazon (lol).
Modified the title to reflect what, specifically, is a problem with the cakes, so there’s no panic about every hunk of fondue.
Archiving a few Amazon pages related to these potentially leaded products
https://archive.md/dUnCw (1332 reviews!)
After some digging, the people associated with selling these products on Amazon seem to be resellers. Since they’re likely not involved in making the lead powders, I won’t bother getting into names-and-addresses stuff. Still tryna find the source but the Florida business entity search is down for me.
edit: I found out that the people distributing this stuff on Amazon are also the people who co-founded the company that made the leaded powder sprinkles, so… smaller world than I was expecting, but hopefully that means it’s a smaller operation that hasn’t harmed that many people.
Lol one of the reviews is a guy who has been putting it on cakes for his clients. They are “very pleased”