To easily vary designs of the appearance and add functions of a lens-fitted film unit at a low cost.

A decoration cover 35 is attached to the front side of a front cover 9. Color print is applied on the front face 36a of a decoration paper 36 and the printed figures and characters on the front face of the decoration paper 36 is exposed through the transparent decoration cover 35. The decoration cover 35 is attached to the front cover 9, and the decoration paper 36 is held as inserted into between the front cover 9 and the decoration cover 35. The decoration cover 35 is composed of a base area 41 and a nest area 42. A decoration cover 51 is molded by exchanging auxiliary dies of the nest area 42. A switching unit 52 of exposure opening is inserted as movable into a switching opening 51b. The switching unit 52 of the exposure opening is composed of a switching lever 53 and a switching filter 54.