Today, TeeFury is doing one of their special “Twofury” deals with two themed shirts for $11 each. One is a Walking Dead-themed shirt by Whitebison called “Surrounded By Death” (at left in black); the other is a Doctor Who-themed shirt by wuxter called “Gallifrey Brick” (at right in black).

The sale began at Teefury today, Tuesday, March 25, 2013, at midnight EST, and will continue for 24 hours from then, and once it’s over, it will not be sold on the site anymore.

Teefury now offers a few colors for each design; click on the color blocks in the “Select your color, size & quantity” area to preview each color. Men’s sizes are S-XL for $11, 2XL (add $1) and 3XL (add $2); Women’s sizes are S-XL for $11 and 2XL (add $2).

Per Teefury: Welcome to TwoFury, a fun new experiment at TeeFury.com. Every now and then we’ll be putting two designs to the test, pitting them against each other in a battle for glory! Buy one or buy both, and check the battle stats to see if your favorite is winning! The first few TwoFury battles will not be available during After Hours, so grab them while you can!

If you’re interested in yesterday’s Harry Potter-themed shirt, it will be available for one more day at the cost of $14 – click on the “After Hours” tab at the top of the page on the main Teefury page.