Hi @Spree
This is PageFly, a Free Landing page builder for more than 80000 Shopify merchants, I would love to provide a solution to your question.
In this case, you should check some product options app. And I recommend you can try Zepto - Product Personalizer app. This app can let your customers design text and upload images to the products you are having as you want. You can check their example store
Especially, PageFly integrates with Zepto, you can not only build a beautiful, high-converting store with PageFly but also use these apps to customize your products.
Let me know if you have any further questions. Like my answer, if you find it helpful.
PageFly.