With Scratch, you can program your own interactive stories, games, and animations — and share your creations with others in the online community.

Scratch helps young people learn to think creatively, reason systematically, and work collaboratively — essential skills for life in the 21st century.

Scratch is a project of the Lifelong Kindergarten Group at the MIT Media Lab. It is provided free of charge.

PowerSploit is a collection of Microsoft PowerShell modules that can be used to aid penetration testers during all phases of an assessment. PowerSploit is comprised of the following modules and scripts:

YARA is a tool aimed at (but not limited to) helping malware researchers to identify and classify malware samples.
With YARA you can create descriptions of malware families (or whatever you want to describe) based on textual or binary patterns.
Each description, a.k.a rule, consists of a set of strings and a boolean expression which determine its logic.

Nishang is a framework and collection of scripts and payloads which enables usage of PowerShell for offensive security, penetration testing and red teaming. Nishang is useful during all phases of penetration testing.