If you downloaded Fashion Icon on your Apple ID years ago, you can still access the file. You will need an older iOS device running iOS 10 or earlier to actually launch it. Open the on your iOS device. Tap your Profile Picture in the top right corner.
Use a sideloading tool like or Sideloadly to sign the app with your Apple ID. Install it onto your device.
If you downloaded the original Fashion Icon years ago on a different device, you might still access it. This is a hidden trick for the :