I am a student. It has been my observation that students will do what appears to be important to them regardless of what you choose to do. The best interaction from the class, as far as attendance is concerned, was from my Economics professor (macro). He allowed one absence the whole semester and he taught a T,Th class. He rewarded his students that followed his policy with an increase of one letter grade, which equaled a 10 percentage point boost to your overall grade. He believed that if you showed up to class, then you could understand Economics the way that he presented it. Overall I finished his course with an 88%, which is a high B, however, I missed one class so I maintained his requirement and received a boost to 98%, which is an A in his course. I took him again for the second part of Economics (micro) and finished the course with a 91%, so the boost was unnecessary because an A was 90% or higher.
The flip side to this, I currently have an instructor who says that if you miss three classes during the semester, then you will lose one full letter grade. Also that three tardies equal one absence. I think that it would be hard to work with a deficit so I will show up to class.
My Art professor always said that he knew the material and he didn't need to worry about getting a job. If any of us missed class, it was going to hurt who ever missed class, not him.
I guess you can come up with any idea that you think will work. You know the material and don't have to worry too much about studying or looking for a job. Where as your students would be better off if they just showed up to class.
You might also need to check with your departmental policy as well as the college/university policy about attendance.