I have four girls and wanted to add to their 'dress up' box so I made them capes and crowns for Christmas:
I got the pattern for the capes from here: Cape Pattern It was a very EASY pattern and one that anyone could do!
I found this tutorial for Felt Crowns and did mine a little different but the idea is the same. The girls really loved them and played in them most of day. I was sure proud of myself as I watched them walk around like real princesses. I love to make them things because they think I'm the best sewer EVER (they don't need to know how many mistakes I make)!