Slice the apples.

Scoop some of the peanut butter into a sandwich bag and clip off a corner. Pipe on the peanut butter to an apple slice and place the second slice on top of it, creating an open mouth.

Add sunflower seeds, nuts, or chocolate chips into the peanut butter as teeth.

Or add a slice of strawberry to look like a tongue.

Pipe a dot fo peanut butter onto the back of the googly eyes and place them on the top apple for eyes.