What do I Think Would be a Really Cool Invention?

           Something that I think would be a cool invention is an erasable marker. Just think of it. There are so many times I wish an erasable marker had already been invented. That’s why I am going to be the one to do it. I can’t wait to hear how grateful people are when they use my invention. I am not talking about a washable marker that people can wash off when it gets on your skin and clothes. I am talking about an actual marker that can be erased off paper! I am so excited to draw with it. I want many more things to already be invented, but I want this specific invention to be made more than most of them. Never a day goes by that I do not want there to be this invention.