While running some other errands today, I decided to stop by Jo-Ann to check out their selection of fat quarters for the Tetris quilt. I really lucked out: I was able to find fabric in three shades for each of the colors I needed!

I also did a test-run with the new block-construction method this afternoon, using some scrap fabric I had sitting around. (I think black, grey, and white will be a good method to show the different contrasting fabric pieces when I take the “final” pictures for the printed pattern.) Unfortunately, I messed up the math; I can never get the calculations for half-square triangles right! In this case, I think that to have 4.5″ finished blocks, I’ll need to cut the initial squares at 6 1/4″ in order to cut down the squares twice.
This leads to another bit of math– and to think I hated math in school– as I figure out how many pieces I can get out of each fat quarter, and whether or not I’ll have enough fabric to construct all the blocks. If my triangle calculations are correct, I may be short on the “medium” fabric for several colors. I’m reasonably sure I can finish the necessary pieces out of my stash, but I’ll need to account for that when I write up the pattern.
In all, I’m very excited that the fabric shopping went so well, and I’m looking forward to creating another geeky video-game quilt!