First take a standard rectangular piece of paper (I used one from a small notebook which I ripped out then cut the holes off)

Then fold in half touching the shorter side to the opposite shorter side.

Fold again making the new shorter side touch the other new shorter side

I did this one more time, but this time I unfolded it right after to get back to where it was only folded twice. It should have left a crease in the paper.

Using this crease, fold the corners up alongside it to look like this

This are also going to be unfolded, but this time you’re going to push in alongside the triangular folds you just made and undid.

Doing this once will result in this

Do the other side of you haven’t already to get this

You’ll open these newly created flap to change which parts are touching

Leaving you with this

Then you start pulling the top “tabs” down

Do both sides to get the final folded form

Decorate as desired.