Alicia from Sew What Alicia shows how you can sew an oilcloth diaper clutch and changing mat. The oilcloth makes them waterproof. The slick surface also wipes clean easily, another important feature when talking about diaper changes.
Click the link below for her tutorial:
How to Sew a Diaper Clutch and Waterproof Changing Mat, by Sew What Alicia
[photo from Sew What Alicia]