Open up the large Oreo cookies either by twisting, prying gently with a knife or heat in the microwave for a few seconds to soften the filling.
Place the lollipop stick in the filling of the Oreo and press down gently, I find it works well if you create a little “groove” with a knife to remove some of the filling where the stick will go.
Melt a few chocolate wafers and place in a piping page with a fine tip – a sandwich bag with the corner snipped off works great too.
Pipe a little bit of melted chocolate over the stick and filling and then place the top of the large Oreo on top. Press gently, and repeat for all remaining Oreos.
For the Mini Oreos, I heated batches of 10-15 in the microwave for 15 seconds, just enough to soften the filling opened and pressed the filling side into the other end of the lollipop stick.
Place a little bit of melted chocolate on the stick and replace the top to secure. Allow to set for 20 minutes.
In the meantime in a medium size bowl melt 1 cup of chocolate wafers on medium heat stirring frequently. Once melted if you find that the chocolate is too thick to pour, add vegetable oil 1 tsp at a time until you get the desired consistency. You want the chocolate to be a little runny, but still think enough to coat the cookies.
Dip the cookies into or spoon the chocolate over them to coat both the large and small Oreos. Allow some of the excess chocolate to dip back into the bowl, and use a spoon to remove excess chocolate from the back of the “Rattle”. This will help prevent pooling of chocolate while the rattle sets
Place on a piece of wax paper or parchment paper and before the chocolate sets add your decorative candies and press gently into the chocolate to secure (toothpicks work great for this)
Repeat for all remaining rattles and allow to set for 1 hour or until chocolate has hardened. Tie the decorate ribbon around the stick. Store in a sealed container in a cool location until serving.