We did a short little workshop in Iris Folding and it is an amazing craft. If you need a quick card to make, this is one way to do it. It is really easy.
All you need is a basic pattern and you can find a few here.
And the how to can be found here.
Here is even a you tube tutorial in how to fold your card.
This was our end product at the end of the workshop. Go ahead try for yourself it is super easy.