This whiteboard made from household materials works like any other- and you can make it in any shape or size you choose!

Materials:
Cardboard (cardboard with white on one side works best)
1 Ziploc Storage Bag
Pencil
Measuring Tape
Paper Clips
Xacto Knife
Dry Erase Markers

Step 1: Cut Your Cardboard

Measure, mark & cut your cardboard.

Mark the dimensions 8.5" x 11" -the size of normal printer paper.

After cutting your cardboard with an Xacto Knife or similar cardboard cutter, if you are using cardboard that's brown on both sides, glue or tape a piece of blank white printer paper to one side of the cardboard.

Step 2: Cram It In!

Now, put your cardboard into your ziploc bag. it should have a very snug fit on the end with the opening.

Push the cardboard as far as possible to one side of the ziploc bag, then seal it closed.

Fold the excess bag towards the back (brown side) of the whiteboard, and secure it with paper clips.

And your done!