Design patterns NOT in the Gang of Four?

We all know the great book about design patterns known as Gang of Four, and the Patterns for Enterprise by Fowler.

I would like to propose this wikified question to collect unusual software patterns for obscure and nice situations, spanning procedural programming, functional programming, OO and AO programming. Give your imagination and experience full freedom.

Solution

The Portland Pattern Repository already exists as an early repository of patterns and is the original wiki. There's no point reinventing the pattern wiki.

ASP.NET MVC Paging for a search form
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Difference between Strategy pattern and Command pattern
What are worker threads, and what is their role in the reactor pattern?
How to get pagedlist size in android when using paging library with mvvm
anti-if campaign
In SOLID, what is the distinction between SRP and ISP? (Single Responsibility Principle and Interface Segregation Principle)
Rust trait inheritance for a subset of the trait implementations
Python Design Pattern Logger Class
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Cross module communication in modular monolith
REST API design: one endpoint with if/else logic or two separate role based endpoints
AWS Step Function - Wait until a group of other Step Functions have finished then fire a different Step Function
How to implement SOLID principles into an existing project
Is this a bad use of a static property?
Groovy loop through Pattern matches
Example of Builder Pattern in Java API?
Factory Method: Prevent a class from Direct Instancing
Name of design pattern creating the same object for equal arguments
If View Model property has value with certain length, replace it with query from database.Do it in Controller, Validation Attribute or somewhere else?
Singleton Properties
How to "mark" a function-like trait to be optionally executed in parallel?
Angular Service Injection in reusable components
What are MVP and MVC and what is the difference?
Design Pattern HTTP API
Deriving from a concrete class?
Does javascript singleton require double parentheses?
Strategy Pattern with Different parameters in interface (C#)
Using abstract classes from another assembly in .NET
DDD Read-Only Repositories returning "value objects"