Awww, we are sorry to hear that, and thank you for loving our products! :)
You can email us a picture of the product that was out of stock to stackers.sg@gmail.com. We will try to see if we are able to find any remaining ex-stock for you. Your feedback will also be taken into consideration when we are thinking if we should do another production run for the particular item that is out of stock.
Meanwhile, keep a look out for the new arrivals! You just may find something that you like! :)