The t-shirt deal of the day over at RIPT Apparel today is a Batman-themed shirt called “The Bat Mobile.”

The tee, by artist Jesse Brais, is on sale at RIPT only for today, Sunday, November 28, 2010 until tomorrow at 1AM EST.

The t-shirt is available in both men’s and women’s sizes for $10. Kids sizes are $15; Onesies are $18. You can also get the design on a Hoodie for $38 (in Men/Unisex sizes).

You’ll notice there’s the Onesie option, and this design would be the perfect gift for a Batman fan with an infant. The design depicts a baby Batman in diapers with a pacifier in his mouth sitting in a crib with Gotham City in the backdrop; above him is a mobile with bats on it — The Bat Mobile, get it?!

So cute!

Here’s what the curator TJ Mapes said about the design.

I woke up one morning with this image of Batman as a baby in his crib with a mobile above his head. To make a long story short, he did a great job and added a touch of Gotham City to it which turned out awesome.