Build plate calibration pattern cleaning strip

Yes, I know that this is painfully easy to simply build on the fly, but I thought that this might still be of use to someone less familiar with the slicer, perhaps. I've had a few instances recently whereby the model released fine from the build plate, but the remnants on the calibration pattern is stubbornly stuck. This simple solution overprints a thin strip on top which can then be easily peeled away, taking the original pattern with it.