Japanese stab binding on upcycled paper

Got these batch of blue paper cardboards some time ago.
And found these computer paper in a clean recycled bin.
So here i run a yellow star binding again.
My ultimate aim in bookbinding: to reuse whatever available resources and give paper a second life.

Mini book

Kiddo has some left over paper and i was thinking of what i can do with it.
The thought of using fabric as the cover has been cultivating long time ago. So perhaps this was the right time to germinate the idea of fabric cover.
Still, going on with coptic stitch.

Special bookbinding gift to a group of teenagers

Literally spent almost like 'satu hari satu malam' (one day and one night) just to get one book done from scratch.
From paper cutting, cover cutting, measuring, sticking, to final sewing.
I have a target of 10 books to complete. It cant be 9 or 8, it should be a perfect 10, otherwise i will be deemed unfair.
With some on french stitch and mostly on coptic stitch, and I was using mostly leftover wallpaper that was supposed to be junk in the dustbin. The inner papers were leftover printed paper from my neighbour who run  a printing company.
My main aim was to fully utilize whatever resources that i could get from the recycled bin and upcycle them to give them a second life.
From end paper to inner paper and cardboard, they were supposed to end up in recycling bin.
Finally.....and finally, my babies were borned:

Top middle cover was using curtain fabric. Damn difficult to stick and i am still learning how to do it well on fabric, particularly curtain fabric.

Left to right cover: wallpaper, wallpaper, wall sticker, wrapper. Thread: cotton yarn. Coptic stitch

French stitch on soft cardboard, with wallpaper as corver