To make the ears I picked up some felt and a similar colored headband from Joann's. I googled searched "Olivia book" and narrowed down my results to only large ones to find this image. Then in photoshop I cropped Olivia's left and right ears to print so it filled one page each - I used these as stencils to cut out my felt. I threw a quick stitch around a front and back then looped some wire in before closing them up. To attach them so they wouldn't droop over I wound them once around the headband and hot glued them in place. Voila!
Most people knew who she was right away and some others thought she was a bunny. It was super fun to see what all the kids choose to dress up as - There were lots and lots of Cat in the Hats and her teacher was Mrs. Wishy-Washy. This Friday they wrap up the week with green eggs and ham, yum!