I'm pretty sure the katsu sandwich on the 5th row is just a flipped version of post #2346997. The other food items seem to be drawn in a different art style than that artist though.
You don't actually need to buy the items to get the files, you can just grab them from the preview in the shop.
For this post specifically you can just copy the video link directly (using a web browser, not the steam client), but other types of items require dev tools/inspect element.
