I wanted to make my baby one of the cute flower crochet flapper hats, so I hopped on Etsy and found the pattern here. Since I bought the pattern, it wouldn't be fair for me to tell it to you, but there are so many cute hat patterns, and just crochet patterns on etsy.
I wanted to be able to switch the flowers out on the one for my toddler, so I made a white one, with five different color flowers, and hot glued some pins to the back, I am happy with the result.
here are some more I made with attached flowers
I actually completely did this one wrong, and I did a lot of finagling to make it work, but it the end, it looked fine on my baby, and I learned a lot in the process.