You can print the sign on a website such as www.vistaprint.com or at your local Staples store. I suggest laminating the sign so that it will last over time. Simply attach the black 'arrow' with a brad.
*There are several variations posted on my TpT store that I made to meet the needs of other counselors. If you need the sign adjusted to meet your needs just send me a message on my TpT store and I will do what I can to help you out.*
Don't forget that today and tomorrow (8/18-8/19) is the special Back to School TpT sale! Use the offer code BTS13 to save an additional 10% off the sale prices!