Yahoo recently developed a "Yodel Studio" and for a short time is giving any one who records a short yodel (like 3 seconds) a $10 gift certificate to spend on www.donorschoose.org!
It's absolutely free to you, and my students would really benefit.
Here's what you do:
1. Go to Yahoo's yodel studio: http://yodelstudio.yahoo.com/us/recording-studio.php
2. Record your yodel, immediately after you record and submit your yodel a gift card number will pop up on the screen.
3. Go to http://www.donorschoose.org/donors/proposal.html?id=315672 and make a $10 donation, put in the gift card number and boom! My students will have $10 more going towards their AP tests.
Anyone can do it from anywhere in the world, so please get yodeling and tell a friend!