Are the names big enough to see? Really? Common sense says the names must be big enough to see so that students can see them. Otherwise, it wouldn't work. Loose or tape them, doesn't that really have a lot to do with the students in your school, your desk, and your trust in students. Since you seem to have little faith in students, you probably should tape them. I'm having trouble believing this is for real. I'd certainly be embarrassed to ask some of the questions you asked. Are the names projected large enough to see? I expect you wouldn't see the answer, "Well, no. I project them so small that the students can't see them and set them up to fail from day one allowing me to see all students as problems so I can claim the students are the problem."