While I love extra-wide backs, I usually end up piecing my backs in some form. Sometimes it's all one piece, more and more I'm incorporating more fabrics than one in the back. Geometry can be fun stuff! I've used the diagonal concept to piece fabric when my scrap had enough area but not the right shape.
I don't know if she was a little short or if this is just a little bit of fun, but I really like what IrishRose2 did in this back, perfect for when that piece is just a little too short!
2019 Fabric Moratorium
Beware, I love wild and crazy backs anyway and some quilts lend themselves to wilder and crazier than others! I took that idea and tried to replicate it here, but I just didn't put the right trim on the right piece to offset the blocks and still have the ends meet, but it was using that concept that I used these two 3 yard pieces for a twin back.
2019 Fabric Moratorium