Just wanted to let you all know that my led hoop is coming along nicely. I was able to test out my circuit over the weekend with my newly ordered battery. All I need now is a good switch mechanism. I am aiming to make one like Moodhoops (spring button). But am unsure if a regular AA battery cell w/ axial leads can work with this due to sizing similarities and/or incompatible voltages. Let me know if you have any tips. All I need is a simple device to turn it on/off. I have a 5/8" tube with a 3/4" connector like the MoodHoops.