Tokidoki offers different t-shirt and clothing designs throughout the year featuring characters created by Italian designer Simone Legno with a Japanese sort of style. There are different t-shirt designs for men and women and new ones appear/disappear throughout the year. So if you enjoy Tokidoki t-shirts, its a good thing to check back to their site from time to time.
Plus they also have a wide range of other Tokidoki branded items too. Not just t-shirts. Here are a couple of my favorite designs:

