How do I just make one custom-printed item (not a game)?
You'll need to start a new custom "game", then click on "Edit" next to the type of component you wish to add to the game. Next, click "Edit" next to the component shape/size you'd like to add. (You may also need to click on "Add" if you're adding a booklet.) Next, upload your image by following the directions in the yellow box. After you've proofed your images, you'll be able to place an order for the "game" containing your components.