This is a box that you can secure a smartphone in so that it can not be touched unless the box is opener has the keys.

Supplies

6 locks that have at least a 1.5-inch tall shackle

A power drill

A hand saw

A pencil

A ruler

And 3/4 inch and 1/4 inch ply wood

Step 1: Measure the Smartphone

Use the pencil and the ruler to record the height and width of the phone.

Then add an inch to each of the measurements you made.

First, draw a rectangle that is the size of the measurements from before.

Next, draw a new rectangle by adding an inch to all sides of the first one.

Finally cut out the small rectangle inside and shave down the edges until you have a shape that looks like a picture frame.

Stack all the pieces of wood so that the lineup and then drill 3 holes on the long side so you can put the locks in.

Finally, put the locks into the safe and you've just made a safe for phones.