I made my 9 month old daughter a Homemade Pebbles Flinstone Costume. She was Pebbles from the Flintstones. I used bright pink and black felt. I doubled the pink felt, cut out the dress pattern, left 4 inches for the arms, and about 5 inches for the neck. I then sewed up the sides, up to the arm holes.
Then I cut triangles out of the black felt. I used felt fabric glue and glued the triangles to the dress. I layed out the triangles on the dress and made sure I liked the way it looked first before gluing. It was freezing here so I had her wear black stockings underneath the dress.
For the bone I used white felt, doubled it then cut out a bone, stuffed it with cotton balls, and super glued it together. Then I hot glued a clip to the back. It was really easy took me two days, worked on it while my little one slept. Had fun making it.