Photo Hunt: Empty

This is my first attempt in becoming a photo hunter and I hope the picture above isn’t too “predictable”. I’m not exactly a creative kind of person, which explains why I couldn’t find a picture that depicts “empty” in my collection of pictures, hahhaha :) So yea, anybody wants to take a guess?
If you guessed “empty egg shells”, give yourself a pat on the back. And if you guessed “empty terrapin egg shells”, give yourself another pat :)

These are empty river terrapin egg shells that we collect over time. The terrapin eggs that we purchased from the egg collectors were incubated in styrofoam boxes. At the end of the incubation duration of about 80 days (on average), the terrapin hatchlings pip and crawl out of the egg shells. And when the styrofoam boxes were emptied to analyze the contents of the “artificial nest”, all the empty egg shells will be uncovered, washed and stacked away.
These empty egg shells make very good educational materials because they’re light and can be easily brought and displayed in any exhibition. By just using the empty egg shells, we will be able to explain — in a simplified version, minus all the details and statistics — about the reproduction of the terrapins to the public (like how I did it in the above paragraph).

*phew* at first i thought u were gonna say u ate all those terrapin eggs!
pelf: Me?! NEVER! Yucks..