[athrowaway3z]

In the vain of redneck-network-engineering; I was lacking a wifi dongle for a server, then I realized I could plug its Ethernet directly into a macmini and set up ip forwarding; making it a strong contender for being the most expensive dongle i'll ever use.

[cevn]

I use Linux computers in this way all the time. If you have a computer with a wifi chip, congrats, you have a reverse wifi router.