This guide is for building an iPhone stand for parents to use on an airplane to hold the phone on the tray table. It is made from kid k'nex, which some kids have. It secures the phone in a good viewing position on the tray table of the airplane and can even be used on a center console of a rental car by just tying it down using a string or ribbon. When you are not on the plane or if the kids get bored of the iPhone, bring a couple more parts and they can take it apart and build with the k'nex.
Step 1: Collect the Parts
The kid k'nex I used came from the ZOOMIN' BUDDIES set. You can see the instruction book in the picture. This set had all the pieces I used. You can probably find the pieces in other similar sets. The pictures of the pieces are in the next step.