Looking for plastic piece to cover camera hole

Hello.
I got prius 2004, and few years back I installed reverse camera.
However during that process i broke the small plastic cover what was covering the hole for camera on boot doors.
I cannot find it anywhere on ebay or google. Not sure what to look for as it is super silly part to need.
Anyone can point me where i can get this small plastic cover in UK or shipped to UK?
This image shows where the plastic cover(camera) should be. Thank you.