What are some examples of permitted end products?

You can buy a web template, add your text and images, and use it as your website.
You can buy an HTML site template, convert it to WordPress, and use it as your website (but not as a stock template for sale).
You can buy a flyer template, modify the text, print a flyer, and hand it out.
You can buy a game starter kit, compile it, and put the game on an app store.
You can buy a music track and use it in your radio or TV ad.
You can buy a sound effect and put it in your game.
You can buy an After Effects template, include your own footage, and use it for a show.
You can buy a photo to use in a blog post.
You can buy a t-shirt template, get it printed on shirts, sell the shirts.
You can buy a Photoshop brush, paint a digital painting using the brush, and sell the painting.
You can buy a JavaScript gallery, input your own images, and display the gallery on your site.
You can buy a 3d model, rig it, animate it, and include it in your game or movie.