I'm so happy to have girls who don't roll their eyes every time I make such a suggestion. They'll get there eventually, I'm sure, but I'm gonna enjoy these last few years of them actually wanting to be a part of the DIY process. So here's what we decided to do. We bought a second set of these $12 flannel sheets, but in a queen size (she has a full size bed) and in the aqua color. I laid the top sheet outside and poured bleach on it in the shape of a peace sign. With the dog standing guard should any cats or bunnies attempt to thwart our creative workspace. But don't be fooled, he wanted to jump on that sheet sooooo bad.
I didn't really attempt to be orderly or neat about this process. The idea was a tie-dye effect, so I allowed drips to run and splash over. Thank goodness, cuz neatness is not one of my gifts. Well, technically I guess it's not so much neatness as it is patience. Whatever.
Once the top sheet was dry, I cut the fitted part out of the bottom sheet, and sewed the two together (right sides facing) on 3 sides to create a duvet. And let me tell you, this was not easy. Well, the sewing part was easy, but we live in a fairly small house so finding a space big enough to lay a queen sized sheet completely flat so I could pin it up was enough to make one completely insane. Every time I laid the dern thing out something was blocking at least one edge causing it to fit just crooked enough. And as soon as I did manage to get it straight enough to at least start pinning, a dog or cat would come jump on it or under it and mess the whole thing up. Seriously. It was like a game to them every time I laid the thing out. And is also why I don't have pictures.
I nearly gave up on at least 3 different occasions, and much cursing went on as to why I torture myself this way and why couldn't I just be a normal person and just buy a new already sewn up duvet cover. It would have made that week go soooooo much easier. But alas, I finally managed to get it sewn (and yes, on the underside there are open slits on each corner where the fitted part was cut out - we both were ok with this as we felt like it was nice to have the old purple comforter peeking thru and it adds to the homemade quality of the thing, but if I had to do it over again I would have used two standard sheets. But that would have cost more money, and I was looking at new sheets and a new duvet cover for the girl for less than $30 and didn't want to blow it. I was on a mission).