Google free knitting patterns or free knitting patterns children and you'll see many sources of hundreds or thousands of free patterns. [I don't knit, but I crochet, and I could keep busy for several lifetimes on the great crochet patterns I've found.] So my advice would be to find a free hat pattern that appeals to you. Make the hat, then crochet a rectangular scarf which uses stitch elements from the hat pattern. [Perhaps you'll see a pattern for a similar buttoned scarf which will give you the size to use. Or perhaps you and the intended recipient can experiment with different sizes. Or if the intended recipient isn't available to test sizes, perhaps you know another little girl who can step in as a model.] Buy a big button that looks good with the yarn. Then on the last edge of the scarf, make a buttonhole (however knitters do that *lol*). [Besides regular button sources, my WM has an area in the fabric/crafts section with kid-appeal buttons (star-shaped and I-don't-remember-what-all). These were sold in small and large packets.] Good luck with the project!

Have you searched Ravelry? You have to have an account (which is simply a username and password) but it is free to create the account. Edited to add that I know for a fact that there is at least one crochet pattern for a soap bottle dress that is totally free to download.

Why don't you browse https://sewing4free.com/ http://so-sew-easy.com/ and Craftsy.com Maybe you can find something that would work for your needs. Start thinking ''adapted" tote bag.

There are many many patterns for crochet slipper sox on Ravelry...pick one and make them gray with a red and white top and there you are.