The United States Postal Service (USPS) has announced the items to be included in their 2011 commemorative stamp program, which includes five new Pixar stamps.

Several Disney-Pixar movie characters are part of the five different designs that make up the 20-stamp pane Send A Hello collection: Lightning McQueen and Mater from Cars; Remy the rat and Linguini from Ratatouille; Buzz Lightyear and two of the green, three-eyed aliens from Toy Story; Carl Fredricksen and Dug from Up; and the robot WALL*E from Wall*E.

The Send a Hello “Forever” stamp will go on sale on August 19, 2011.

Visit USPS to learn about and see images for the other stamps revealed for 2011, which include new designs for Purple Heart, Wedding, Holidays, and much more.

[Source: USPS; Image source: Pixar Times]