Squeak Etoys is a "media authoring tool"-- software that you can download to your computer
and then use to create your own media. You can write out your project and share it with others.
Etoys runs on any Mac or Windows machine, as well as on the OLPC XO machine.
It is free.
Find out about Etoys.
Text of this guide (for searching): A Maker Button will make copies of anything you drop on it. Even copies of itself. Object Catalog: Maker Button. Click on an Object Catalog in Supplies then click on Connectors.
Click on a Maker Button and drop it on the world.
If you plan to use many Maker Buttons in a project, put a second Maker Button on top of the first one and it will make copies of itself. Use the paint tools to draw something you will use many times.
Put your sketch on a Maker Button.
Click for copies. If the object has a script before you put it on a Maker Button all the copies will have that script too.
These examples are objects. Each will be put on a Maker Button. These letters are on Maker Buttons and now will provide an endless supply for making words or patterns or . . .