Anyone have a knockout/blank square panel thing they could send me?

I installed an EV switch a few months ago and ended up losing the blank knockout panel thing (the one next to the dimmer switch to the left of the steering wheel). Does anyone have an extra they could send me? I can't find them for sale online either because I'm not 100% sure of the nomenclature or they're just not sold. I'll PayPal you whatever you think is fair for the time/effort to mail it; I'm in central/gulf coast of Florida and can even pick it up during my travels. Thanks!