A flexible parametric model for North-American switch and outlet cover plates, supporting small light switches, large light switches/dimmers/GFI outlets, and duplex power outlets in any combination of up to 5 outlets. Every outlet can optionally be given upper and/or lower embossed labels. There are also several design variants available in different shapes and border styles. No support material is required for any design variant.

I've provided a set of pre-rendered 1- and 2-outlet parts in common combinations, in the "spherical" border style. I've tested these throughout my own home and designed in a generous outer margin to compensate for inconsistent drywall/electrical box spacing, but you can freely adjust it. If you require any variations not covered by the customizer, feel free to describe what you need in the comments.