Quarter the green apples and slice off the core and seeds. Carefully cut out a v-shape into the center of the apple quarter to create the mouth of the monster. Repeat with all the apple pieces.

Spread a thin layer of peanut butter into the monster mouths. Repeat with all apple slices.

Press several pumpkin or sunflower seeds onto the top of the mouth along the edge to form teeth. Repeat with all apple slices.

Place a triangular piece of cheese into each monster mouth.

Using the remaining peanut butter, spread a small amount onto the back of the candy eyes and place them on top the the apple slices.

Serve immediately!