NFTs do not give the owner many real-world rights to an image. However, a case could definitely be made for the abiltiy to put your NFT on a shirt or hoodie to show it off. Doing this is pretty simple as this brief guide will show.
Using a laptop or desktop computer right click on your NFT and download it to your computer (typically "save as" or "save image as".
Go to the Customizer on GetCryptoTees.com and select the upload icon on the left-hand side to upload your NFT image.
This cusotmizer defaults to the Hoodie option. Select the icon that says "Products" to sort through a vast array of potential options including various t-shirts, hoodies, jackets, and pants. You can also select from non-shirt or hoodie options like iPhone cases, teddy bears, coffee mugs, backpacks, and posters.
Once you've selected the product you want to add your NFT to simply click on "add to cart". Repeat this for every product you want to add your NFT art to.
When you're done simply order your products and wait for them to get printed and shipped out.