Absolutely love mock up files!!!
Cat Coquillette published a Skillshare class on the use of mock files a few months back, just at a time when I was wondering how people are making their patterns look like real products. 😀😀😀
I’ve found some free from Graphic Burger and purchased some from Creative Market. It is just amazing to see one’s drawings as potential wall art or fabric. They’re also helping me to understand how different patterns work with different products.