The first item is especially limited. It comes in the form of a Cobra, that will only be available for the next few hours. As a premium item, it is available to purchase for 250 Meteor Credits.
The other two items are available under the Fences tab of the Decorations section of the marketplace. They come in the form of a Sandstone Fence and a Sandstone Post. Both items unlock for users level 25 and above, after which point you’ll be able to purchase them for 2,500 and 750 coins respectively.
Adding this fencing to your land would be a great way to section off the rest of your Egyptian themed items, should you have purchased any of the previously released items this week. If not, or you’d like to add more items to your island, head over to the game’s page to start shopping.