Woollen coasters

These little coasters are very useful.
I have that bad habit 

of drinking iced water (and coffee).
As the ice melts it leaves water marks.
My mother used to complain about me 

leaving water marks all over the house :-P 
Not any more!!!
This weave is made like it's from a loom.
I used a makeshift little loom to make these.

 Below, you can see a picture with direction 

on how to make a makeshift loom.