Food is a common gift and never goes unappreciated. It may be perishable, but it is usable and doesn't take up space. While you may not be able to cater to everyone's tastes, it's still a solid plan to go with a food item in the gift basket. Just be sure about your employee's dietary restrictions or needs before buying food. Buying a bag of gourmet nuts would go wasted on an employee who is allergic to nuts.