If you like to show your design in a nifty and striking style, I bet this can mockups spark your interest. You can simply change whatever you fancy in a small breeze. There is no hard or tricky work, just open the file, paste your design and hit the save button.
As long as you work with these mockups, everything is under your control. Use your creativity and make the best presentation. The way you should present your product is truly important, so start to customize and see how amazing it appears.