ISO blank wall plate to cover ceiling mount for mini dome

so i recently switched my guest room and nursery and i dont want a camera in my guest room. but i dont want to patch the drywall, i'd rather have a "blank" plastic cover / wall plate. anyone ever seen one for a hikvision mini dome?

this is what the ceiling looks like:


ideally i would cover this with a white plastic cover that would make it blend into the ceiling much better and have a separate mount in the other bedroom.

now that i'm writing it out i guess i could take the base plate off and just find some sort of wall plate that would span the existing holes. not sure though. open to suggestions! thanks

answering my own question

https://www.amazon.com/gp/product/B000HM5M4K/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

i'm going to go with this:
Arlington CP3540-1C Ceiling Box Cover Plate for 3-1/2" & 4" Boxes, Paintable

came in to post that same thing.. just a ceiling fan blank