Our grandchild was over to visit while I was gone. My husband let him play with crayons and our two Yorkie puppies got the crayons and chewed them up. My husband tried to get the tiny bits up with the steam mop and when I arrived home I saw black and red streaks in the carpet – the steam had melted the crayons into the carpet. I used the steam mop again, but used Thieves Household Cleaner full strength on the carpet first. I just rubbed it in and then used the steam mop. To our amazement, all of it came out!