You may be wondering what this is. I too was inquisitive. Maddox came to show me his arm this morning asking "Mom, what is this?" I was about to reply something like, you probably put your arm in something sticky and didn't realize it and then dirt and maybe shirt lint got stuck to it. But before I could reply he said, "Do you think it's webs?" I said, "I don't know" and then he tried shooting webs from his wrist which didn't work. A long sigh from him and then he says, "maybe its just dirty." I thought he was past all hope of becoming a super hero but it looks like there is still a glimmer of hope left.