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): Menu Commands: Grab Me and Reveal Me
Find an object you can not see.
Click the exclamation point to run the script and lose the wallet.
Then open the white menu and click on reveal my object. Click on the white menu in the top of the Scriptor on this page.
Choose: reveal my object. Or. . . Choose: grab me. Or. . . Open a Halo and a Viewer for this wallet.
Click on the white menu in the top line of the wallet's Viewer. The Viewer's white menu includes: reveal me. Try it too.