If you want to make a queen size quilt, you need to finish at 90x108. Do you want borders? If yes, the borders on Jenny's quilts in the video are really cute. In these calculations, I am assuming that there will be 3 borders that finish at 1.5" apiece.
You will need 3 layers cakes and 1 3/8 yards of coordination fabric for the borders and binding.
Make double slice blocks from all 3 layer cakes. You should have 126 total blocks. Set aside 27 blocks for the pieced borders. Set the remaining blocks 9 across and 10 down. The center should measure 81.5" x 99.5" through center.
Cut 10 2" strips from the coordinating fabric. Join strips to form 2 long 200" strips. Cut long strips as follows:
2 strips equal to vertical measurement of quilt (about 99.5")
2 strips equal to horizontal measurement of quilt plus 3" (about 84.5")
2 strips equal to vertical measurement of quilt plus 6"(about 105.5")
2 strips equal to horizontal measurement of quilt plus 9" (about 90.5")
Cut the remaining 27 double slice blocks into 2" strips. Avoid having seams close to either edge of slice. You should easily get 4 slices from each block, for 108 slices. Join vertical slices into 2 strips measuring 87.5" and 2 strips measuring 102.5".
Join 99.5" strips of coordinating fabric to sides of quilt center. Join 84.5" strips to top and bottom.
Join 102.5" strips of double slice segments to sides of quilt, and 87.5" strips to top and bottom.
Join 105.5" strips of coordinating fabric to sides of quilt, and 90.5" strips to top and bottom.