Wearable Toy Piano

Step 4 Battery case

Here I am using neoprene, but you can also use other kinds of stretchy fabric as well. Use fusible to stick the conductive fabric on the tab part of the material (small round shaped part). make sure that the conductive fabric side faces inside so that it touches the battery. place the popper on the flapping side of the tab so you can connect to the T-shirt.