Child’s Stone Age dressing up costume (Tilehurst RG30)

My son recently studied the stone age as a topic at school. The school decided to do one of those experience days (that most parents dread) as they asked the children to come to school dressed as a stone age person!!!! Rather than buying an outfit I decided to make one. Can anyone else use it? It would fit a 6-7 year old. Comes with a headband and wristbands !