This homemade female Roger Rabbit costume all started with a basic red romper. I replaced the original buttons with yellow ones and cuffed the bottom of the shorts. I found white & blue polka-dot fabric and painted in the white circles with yellow fabric paint. Using the modified fabric and yellow ribbon, my sister sewed up the bow-tie and included a clasp in the back for easy removal.
I purchased a set of plain bunny ears and added a tuft of cotton that I colored in with an orange marker. The yellow knit mittens were already a part of my wardrobe (Jessica Rabbit was not homemade, but made a nice accessory to my homemade Roger Rabbit costume!)