I'd like to know what crafters put on top of those primitive muffins that looks so much like icing.
The answer to this one is rather surprising , it is white hot melt glue. There are a couple of different types of white hot melt glue. One, Surabond, melts clear but dries white. The other melts and dries white. There are shiny glues and dull glues. I would imagine that a hot melt pot would help with this process as you could pour the 'icing' onto the muffin.
Thanks to Yvette and Kerry for helping me with this answer!