Rounded Half Wall Trims

I enjoy using Half Walls. But my Sims and their guests will deposit dirty dishes on Half Walls. In small builds, I can find these dishes easily. However, in my large mansion builds, finding these pesky dishes becomes difficult if I've used Half Walls.

There are trims in Dine Out and Get Famous that prevent slotting. Could there be an update to add a simple rounded or curved top Half Wall Trim to Base Game that doesn't have slots, please?