For the limbs and ears we're going to make our lives as easy as possible! Fold the dark/contrasting fabric in half and pin into place: now pin the pattern piece/pieces on top of the folded fabric. Take a dressmaker's pencil or some tailor's chalk and draw around the pattern piece(s) - this chalk mark will be your sewing line. Sew over the chalk line, making sure to leave an opening as indicated on the pattern piece.
Decide how much seam allowance you want around the pieces and cut out (I think 3 or 4mm is about enough for a medium weight fleece.)
Turn the ears right side out and set to one side.