The deal of the day over at RIPT Apparel today is for two Monty Python-inspired designs: “I’m Invincible!,” a mash-up with Super Mario Bros. (see image above) by Obvian, and “Black Knight Twister,” a mash-up with the game Twister (see image below) by Fanisetas.

Both designs went on sale at RIPT today, Tuesday, February 18, 2014, at midnight CST, and will continue for 24 hours from then, and once it’s over, it will not be sold on the site anymore.

The t-shirt is available in men’s (through 3XL), women’s, and youth sizes for $10 each. Kids sizes are $10 (Girls, Toddlers, and Onesies); Hoodies for $38 (in Men/Unisex sizes). See images on product page for shirt colors. You can also get the design on coasters for $25; prints 18″³x24″³ for $20 and 24″³x32″³ for $40; headphones for $40; laptop sleeves for $30-$40.

The $9 t-shirt deal of the day over at Teefury today is the Fantastic Four-inspired “Twister Champion” shirt, by artist Naolito.

The sale at Teefury began at midnight EST (Tuesday, January 11, 2011) and will continue for 24 hours from then, and once it’s over, it’s gone from the site for good.

The design has Reed Richards, aka Mr. Fantastic of The Fantastic Four superhero team, twisting himself up using his super-stretch ability for a game of Twister.

The limited-edition t-shirt is available in Men’s sizes in Silver and Women’s sizes in Natural.