Ready to make some spools? :) First you need a pile of 4-patches made from 2" squares. And then you need a pile of 3.5" unfinished Half Square Triangles that are three times the amount of the 4-patches. Example: ten 4-patches and 30 HSTs.
I haven't had a chance to put my WonderCut Ruler to work yet, but I bet it would be much faster than taking two 4" squares, marking one diagonally, sewing a quarter-inch on each side of the line, cutting it in half, trimming it down to 3.5" and ironing them open. Whew... that made me tired just to type it all! ;)
Next I laid out one block to give you an idea of the layout. It will finish at 12" square.
To make it a little more easier to see, I broke the block into quarters. If you look closely, each quarter is exactly the same, only they're turned accordingly to form the spool block. Three HSTs and one 4-patch in each quarter. If you stack them all in one direction, sewing them together goes pretty fast!
I sewed the quarters up, sewed the quarters together to form the block and made a total of 4 blocks. Place the spools tilting all in one direction - in my case, to the left.
And ta-dah! The 4 bocks together form a 5th spool in the center. Obviously the more blocks you sew together, the more secondary spools will pop out. It's so cool! :)
I'm officially all ready for the mystery tomorrow. Half a dozen bobbins wound, new spool loaded, sharp needle and some back ups nearby. Fabric is all cut and in ziplock bags according to the clues. I know where my thread snips are, my rotary mat is clean. Yup! Now I just need to be able to fall asleep tonight. :)