Well, it depends on what your manager likes and values. If they appreciate practicality, consider giving them a gift card to a store or restaurant they frequent. If they are more creative, consider giving them a framed photo of a memorable moment from your time together. Or if you want to go the extra mile, you can even create a personalized gift basket with their favorite snacks and drinks. Whatever you choose, make sure it reflects your manager's personality and expresses your gratitude for their guidance and support.