what purities of sodium iodide and hydrogen peroxide are required to replicate the bogfoam prank from brainiac?

helo , i would like to know, what purities or quantities are required to replicate the bogfoam prank from brainiac, in which dr. bunhead puts hydrogen peroxide in the water resevoure and sodium iodide in the bowl, then flushes the toilet and the whole room fills with foam, i need to know how much and how pure, please, a

and also if the foam is bruoght up by soap, and if not is the foam toxic