Phone stand with paper amplifier

This is an experimental phone stand that's large enough to fit phones up to the size of e.g. the Galaxy S5. It can be used as a regular stand, but it also carries a little extra: an internal tube structure that opens up on the outside. Roll a piece of paper, put it in there, and you have an amplifier. Well, ok. It's not really ground breaking sound that's coming out there, but when you use it with a phone that has its speaker below in the middle, it actually is louder, and you can use it as a po