LOL about the Irish chain, here is the top I just finished using the pattern Heather posted above (grandma's lattice). This is the second one (first is not assembled yet) as after I got the blocks for the first sewn, I wanted to try something different and not have solid centers. I used jelly rolls for the colors, and assorted whites for this one, but it's all 2.5" squares. I'm thinking of doing one totally scrappy to use up candies.
This worked out as I had two identical jelly rolls, and there weren't a lot of different fabrics, so each had 4 wof of most. With 8 wof, I could use them for borders. I pulled another ten blenders from another jelly roll to fill in so I'd have enough. I'm pretty sure this also took about 500 white squares. I pulled 14 different whites out of my stash and cut WOF until I had enough.
I sure don't like working with unwashed fabric, and will be very happy when I've used up all those jelly rolls. Won't buy more, would rather by yardage and cut my own.