*here,(SEE EDIT BELOW) and take a look at the original publication it was in. It's a no brainer, so grab your G hook, and some cotton yarn and you can have a stack of these ready to go by Mother's Day.
In case you were wondering about the pretty piece of material they are sitting on, it 's Hello Luscious by Basic Grey for Moda. I may have also bought a charm pack or two.........
this tutorial and some Robert Kaufman Essex Linen.
*EDITED TO ADD: I guess the original link to the coaster pattern is no longer available! You can try here, for a blogged version.