To be fair, the original creator admitted it wouldn't be when he said, "The increase in volume, of coarse, is radiculous, but hey, you get stylish iPod accessory out of nothing!"
Still, I figured why not try it out and just see hear what happens. I have an old pair of earbuds that I can try it out with and a couple coffee cups that were just hanging out on my desk waiting to get recycled anyway.
Step 1: Cut a hole
- Draw a dot in the center of the bottom of the cup
- Use that as a guide for placing your earbud against it
- Trace the shape of the earbud
- Cut out a slightly smaller shape