WalletStation

This plugin allows you to create code generators for Xbox Live codes, Amazon codes, Minecraft codes, etc. In order for a 
user to obtain a code, they must go to a url, that you provide, to obtain a password. Once they obtain a password, they enter 
it in the generator to get a code.
Lite Features 
-Create 1 generator.
-Create 10 codes.
-Create 3 URLs per code.
-URLs are randomized.
-Customize generator’s style.
-Generators can be added on posts or pages.
-Codes can only be accessed by one person at a time. A code becomes active once one of its URLs are accessed. If a password isn’t entered, the code becomes non-active in an hour.
-Once a password is entered, the code and its URLs are deleted.
Pro Features 
-Create unlimited generators.
-Create unlimited codes.
-Create unlimited URLs.
-URLs are randomized.
-Each generator has its own style.
-Generators can be added on posts or pages.
-Codes can only be accessed by one person at a time. A code becomes active once one of its URLs are accessed. If a password isn’t entered, the code becomes non-active in an hour.
-Once a password is entered, the code and its URLs are deleted.
<a href="http://walletstation.com/code-generator/" title="Get Code Generator Pro" rel="nofollow ugc">Get Code Generator Pro</a>

Code Generator Lite

Jay Versluis

The Child Theme Wizard lets you create a new child theme without the need for additional tools, right from within the WordPress admin interface. Once activated you can find it under Tools – Child Theme Wizard.
Specify a parent theme, customise options such as title and description and click Create Child Theme. Upon success you will find your new theme under Appearance – Themes.
You have the option to include GPL License Terms if you wish. The Wizard will automatically create a thumbnail too. In future versions I may include an image uploader for this feature.
To find out more about Child Themes and why they are important please read https://codex.wordpress.org/Child_Themes

Child Theme Wizard

I actually installed another plugin before this one. I wanted to check theme overrides on a VPS (Dreamhost) install. This worked, the other plugin did not!

It was simple to use, although if a link to the page to generate could be placed on the plugin listing page, that'd be fantastic.

One other minor comment, is that I feel all themes should be lower-case and it generated an uppercase folder... wp-content/themes/Twenty-Twenty-Child

Really every theme should have this built-in, it's a great utility and saves a lot of boilerplate generation.

Great plugin, did what I wanted

Creates a child theme with one click and lets you customise its options.

Code Generator Lite vs Child Theme Wizard