I never worked with straw before and the straw marquetry doesn’t look too difficult ;-)
Mainly it is straw, made softer with water, cut open and flattet and then glued on plain printing paper as parallel as possible.
She made two sheets, one with natural straw, one with straw dyed with batik colours.
Both sheets are stacked with a template and then cut carefully with an X-acto knife.
Then she put the pieces together as you can see in the tutorial.
Straw Marquetry (Bilder aus Stroh – Anleitung) (German) => scroll down to ‘Stroh-Intarsienbilder’
The pictures are from Intarsien aus Stroh.