Tied a long shoe string to my iphone 5s otterbox, by the charger, there is a a loose piece of rubber you can easily tie one end too. taped the other end to my ceiling fan, so far seems to be working for eggs. Will report back in a bit to see how far it goes.
lmao..... you sir are cheating... I like it! ive heard of people putting them in the back of an rc-car and running it around, or putting them in quad copters, but yours seems like the cheapest method. keep me informed I have a full inventory of eggs that need attention.
I am working on the best method. On Android, in developer options, disable screen sleep when plugged in. Plug in phone to car. Open app, then drive around.
This has some shortfalls, mainly, overheating. I had an idea to buy a small ice pack and put it inside of something and put the phone on top. That should solve it! 
please don't pokego and drive.
When we go poke hunting with the car. the driver focuses on the road, and the passenger holds his phone and does double duty and tries to work both phones. can be a PITA when your are trying to hit poke stops with both phones when you are driving on a main road/street doing 40.
Last night, it was my best friend, my other close friend, his little sister and I all in the car lol. we hit the mall and i finally caught a pikachu, along with a bunch of other stuff. 2 pokestops next to each other had lures, so i dropped a lucky egg and incense.
