I wanted to do a GPS nav screen in my car, but I didn’t have an in-dash system. But I did have an old laptop..hmmmm. What if I used this as an excuse to use my brother’s welder to create a little stand so I can use GPS software on the laptop while I drive? Materials: About a foot of 1 inch square steel pipe. An old music stand shelf. About 2 feet of water heater copper tubing. A couple of connectors. Link.