Fold the bottom corner to the top

Fold again to make an "X"

Fold horizontally

Fold in the corners

Fold in half

Fold the back flap in to make a parellelogram

Make 7 more to have 8 in total

Put two of your parellegrams together like this

Fold the flaps in like this

Continue the last step until you end up with something like this

Push in the right and left sides

Push in the top and bottom

Push in the parts where the pencils are

To end up with your finsihed result