Workers showing appreciation for their boss’s support and leadership. A gift that is work appropriate and maintains professionalism. Express gratitude and show him what a truly great boss he is with this wonderful goodbye gift. Create a one-of-a-kind going away gift for your mentors, managers or supervisors with us! No muss, no fuss! A single person drawing next to Brompton bike, holding a camera. Background: Sunset and iconic Singapore landmarks. Outfit: Simple shirt and dark jeans. Insert sign wishing Boss a Happy Birthday.