you can do this by creating an Ad Hoc Network with your laptop or your desktop. and
make money with this by sharing the internet connection with your friends.
An Ad Hoc network is a local area network that can easily be set up in no time whatsoever which makes it possible for computers and devices to communicate directly with each within a limited range. It can be to share data and internet connection between wireless devices.
you can get the steps required to set it up for at http://www.baricblog.com/2012/12/create-wireless-network-without-router.html