The divine can take on a host of images that could look excellent on fabric or clothing. Adherents often prefer this type of creative work done or their clothes and it is also a means of worship or advertisement for any belief. Many simply find these things attractive, and when there are no proscriptions or regulations for wearing religious images, they could wear these, too.
Many find artists who practice along these lines as the most inspiring of all. Spiritual Art T Shirts could be of any religion, from Buddhism to Islam to Christianity to Judaism, but most of these are not keen on wearable art. But there are certain shops or outlets authorized or at least have the sanction to make this kind of thing available to worshippers.
For instance, Catholics often commemorate their events with shirts. These are not necessarily artistic items but the art could be more generic and intrinsic to a shared experience. Thus the creative work is something that does not assume too much or be independent of the needs of the church and the members who need these items.
Most of the best kinds of artistic work that is done for religion is not something that is commercialized. Or at least not that the churches or religious organizations could really profit from them. Most of the money that is given for these items could be farmed out to various charities or charitable programs that the officials of a religion want to participate in.
The mission is first and foremost the most important thing for the artists and the distributors here. But may could use any kind of artistic work based on religious images. And if done correctly, he may not be sanctioned against their use when and if he uses them in conjunction with some temporal items.
But religions often own their set of images, and they are zealous in making sure that these will not disrespected or debased. Which means that the available artistic or even crafts for shirts are often connected to a sodality or group which works for a religion. Their job is exclusive to it and they work for no one else.
The beauty of art here is something that is more nostalgic or belief based than anything. However there are certain great works that are connected to the major religions and historical artists universally acknowledged as great not because of their religious work. You could cite Michelangelo as an example here.
His images remain popular even to non Christians to this day. And it means that these images are now a thing of universal or even commercial ownership. The church cannot impose sanctions on anyone who wants to use them to print a number of shirts for commercial purposes and a lot of outfits do this today.
The thing is that major debasement is often frowned upon as a matter of etiquette. Some cults and hidden religions could consider defacement important but wearing them out on the streets could impact negatively. In any case, all religions have created the most beautiful things through time and could even inspire some more.