Hi Christina,
There are many great lab activities out there from which you can select those that will work best in your setting. If you haven't already talk with some of your textbook reps and see what they have to share with you. These activities come in many different formats so you can pick and chose those that you like.
Another source of lab activities is from your professional association(s). I have found them to be a great resource since most of them have an educational division that develop exercises and case studies, etc. that work well as lab activities. Talk with them and see what they can share with you.
Gary