Take a guess maybe win some steem

First person to identify what's under the microscope slide in this post wins the steem dollar portion that is paid to me for the first week of this post. I will pay when the steem dollars are in my account. If someone guesses the correct answer before the week is up I will announce it as soon as I know. I will give an initial clue; if on the last day no one has guessed yet, I will give another clue or two that will allow someone to win the prize. You can vote to increase the prize. You could resteem it to get more voters. The first reply with the correct answer wins the prize. If know one wins the prize by day nine the payment will be rolled over to the next contest. Clue number one: It can be found in homes all over the world. Good luck, I hope this ends up being fun for everyone. You can also give me a vote if you like the image. I kind of like it.