[Kludge]

uh,.... duckduckgo search android x86 and install it on a VM. Boom, you have Android on PC. Enjoy switching MAC addresses every boot and not bothering to put apps on your phone that all spy on you.
Sounds enjoyable to me, except I already deleted just about every app on my phone including all programs accessible by mic or camera and completely disabling google with a custom ROM

Or you could download bluestacks, which is an android emulator, and run that in its own window.

Android x86 runs in Virtual Machine and VirtualBox with no issues at all and can even allow file sharing with the Host machine, as well as allowing one to perform much more complex tasks than a simple sandbox made to only run ONE simple OS.
I'd rather have my VM able to run W7,8,10,OSX,Linux,Android,iOS, and every other distro of everything under the sun.
My solution appears more versatile than your sandbox quick fix.