this is the plank i'm going to turn into a box , 
it's in very rough shape and full of holes but i didn't find great pallet wood lately ( i use to have oak but i've used it for something else)
Sorry for the broken english , i'm from france , and it's well known that we are not great for foreign languages.  

the 4 sides are cuted to equal width with a circular saw

I'm going to assemble the box like this

I'm setting the depth of cut to 7mm to make the grove for the bottom of the box

I did two pass because the width of my saw blade was to narrow 

Here im starting to assemble the planks and drilling to put the dowels in place

A little wood glue on the chopstick 

Banging on the dowels and cuting them flush

Marked the correct size for the bottom of the box. and cutting it with the circular saw

Sliding the bottom in

Banging in the last dowels , 
3 chopticks went into this box !

Measuring my box i see that it's 11 centimeters wide , but my widest plank is only 9,5 centimeters.

Then I remembered that I had a piece of a blue CHEP palet that was a little more wide than the rest of my planks , and after verification it's just the good width.

I was affraid i would have to glue 2 planks together to make the top and loose a lot of time

I did sand a little the sides of the box , but i didn't know how much time was left so it was not very well done

after turbo sanding

the top is on ! 
i secure it in place with 2 clamps

about a year ago i found an old leather couch in the street , 
i had a pocket knife in my bag , so i salvaged a big piece of leather from it , i've cutted two small strip from this pièce using simple scissors.

nailing the leather using a clothespin for the first strike to save my fingers

done

only 39 minutes ! 

after taking the photos on the computer i saw that i only taken 39 minutes and that i had ample time to sand and finish the box but it was already to late ,
making the galery and the comments has taken me a lot more time than to make , the box