
Build It is one of the Webelos/Arrow of Light elective adventures. For the Build It adventure, Webelos learn about using tools safely and carpentry. Then they use what they have learned to build a project.
Printable helps for requirements:
Printable requirements for Webelos/AOL Elective Adventure: Build It
Printable checkoff sheet for Webelos/AOL Elective Adventure: Build It
Printable note sheet for Webelos/AOL Elective Adventure: Build It
Put your project together with these related ideas and achievements:
Tic Tac Toe Game Project

I thought this would make a good Craftsman project for my Webelos. We'll probably try this in December. They could make these and then give them to someone as a Christmas present.
Projects for Scouts

Projects give Scouts an opportunity to build something useful. Make sure your project is appropriate for the age group and don't forget about safety instruction for any tools you will be using.
Tech Talk Cub Scout Nova Award (Technology) Helps and Documents

Tech Talk is the Cub Scout Nova Award for investigating technology. To earn this award, Cub Scouts explore topics such as computers and cameras . They must also complete one of their adventures related to technology or do a related investigation.
Webelos and Arrow of Light (AOL) Cub Scout Helps and Documents

Webelos is the Cub Scout program for girls and boys in 4th and 5th grades. 4th graders work on the Webelos badge. 5th graders work on the Arrow of Light emblem.
Fearful Symmetry Cub Scout Nova Award (Mathematics) Helps and Documents

Fearful Symmetry is the Cub Scout Nova Award for investigating the properties of symmetry. To earn this award, Scouts must complete one of their adventure related to patterns and symmetry. They explore how symmetry is found in art and nature.
Hiking Stick Project

Cub Scouts love to get their pocketknives out and strip bark from fallen sticks. Why not make it into a project?
The Big Book of Weekend Woodworking: 150 Easy Projects

This woodworking book has plans for 150 woodworking projects for beginners. It also includes information on tools and planning. This is a good resource for the Webelos Build It adventure or for the Woodwork merit badge.