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): Halo Tools: Menu Choices for Control and Convenience. Right click on the sign to open its halo then click on the Menu handle.
Click Menu's push pin to keep it open and easy to read. Try: send to back and bring to front. It takes time to learn what is in this Halo Menu and how to use these tools and commands.
Experiment with each choice for the palm to see what happens. Some actions can be undone; click the arrow in your Navigator Bar. Try these Menu choices for the ocean.