Eric, I will be sending you 9 coins altogether. In addition to the 3 coins I listed below, there will be these 6 coins from the "America, The Beautiful"
(National Parks) Series. I'll let you know when I've posted them.
2010 Yellowstone, Wyoming
2011 Gettysburg, Pennsylvania
2012 El Yunque, Puerto Rico
2012 Chaco, New Mexico
2012 Acadia, Maine
2012 Hawaii Volcanoes, Hawaii
The US Quarter program that began in 2010 is the "America, The Beautiful"
(National Parks) Series, with 5 different parks/coins per year.
I like tiny coins and coins with birds on them, but there's really no need for you to send me any.
I'm pleased to be able to help you with your collection.

By the Way, the 2009 Columbia coin is part of the series that followed 'Statehood' coins, "District of Columbia and US Territories Quarter Program, 6 coins, all dated 2009.
District of Columbia
Guam
US Virgin Islands
Commonwealth of Puerto Rico
American Samoa
Commonwealth of The Northern Mariana Islands.