Pocket Change Yellow, Orange, Red and Purple - Puzzled by Piker

Pocket Change Yellow, Orange, Red and Purple by Puzzled by Piker

I am the original owner, solved a couple of times.

Payment can be made through PayPal (Friends & Family preferred).

The puzzle is located in Europe, but I will send it worldwide. 

Buyer to pay shipping calculated after auction.
Please wait for the updated invoice before making the payment.

From the Puzzled by Piker Etsy page:

The Pocket Change series are free the coin puzzles. My goal was to create small and affordable puzzles that still require thought to solve. These are not trick boxes with just 1 step. Each one presents a different challenge and will require a different thought process to solve. They are great for travel (no pieces smaller than the coin) and sharing with friends.

Pocket Change - Yellow is a small, flat box with a coin visible at its center. Upon initial inspection you will quickly discover what must be done, but will soon find the pathway to your goal may not be as straightforward as it seemed.

Pocket Change - Orange is a solid box with no initial clues or movement. There are a few small slots visible but will that be enough to remove the coin?

Pocket Change - Red is an interesting puzzle that will reveal some movement right from the start. However, aside from being a fun fidget, the movement seems to get you no closer to your goal of the coin in the center.

Pocket Change - Purple seems simple at first. Upon inspection you will realize what needs to happen to free the coin, but will quickly discover it is not possible. Perhaps your first thought was incorrect..... or maybe just your process is.