Warning: contains bugs, e.g., sometimes overlaps in folded pattern are wrong, sorry, also includes impossible cases, and sometimes the paper looks like it's cut into bits. So, use/fold at your own risk!
Also running the animation may slow down your browser
use the mouse to move the red, green, yellow, blue dots to change the crease pattern, which will also change the resulting origami.
Some origami folded with this kind of crease pattern: