Lily pads or Mouse Ears are circular features that are added in model perimeter locations that may be susceptible to warping, such as sharp angles or highly detailed surfaces. Lily pads are an excellent choice for models that do not need a complete brim around the part. (excerpt https://www.matterhackers.com/news/-how-to-stop-filament-warping-in-3d-printed-parts ).

Place under tall skinny prints or around parts to prevent warping. The included file is 20mm x 0.2mm. It is suggested that the height be equal to your first layer height.

On Cura, import this model then right click on the model and select "Multiply Selected". Then, enter the number of Lily Pads you need. Place the center of the Lily Pad on the Edge of the model you wish to stabilize or prevent from warping.

Shout Out to MODBOT for showing this idea on his YouTube Channel.
https://youtu.be/XJgQig2XhBw