You can use the Product Templates to create your own mockup image for any of your products!
Simply pick a product from Printful’s Product Catolog, select your colors, add your design, and save it. Then go to Product Templates, click Download Mockups, and customize the mockups as you want to use in your store.
If you want other mockups, we suggest using Placeit. Choose your product, upload your design, and you can have access to their library of mockups. We have a pretty sweet deal for you—when creating a new Placeit account through this link, you’ll receive a 15% discount on the first payment of their annual or monthly plans.