Covering IR Sensors

I have a pioneer vsx-52. It claims the front sensor has reduced priority over the IR input. This is all fine but apparently the signals have to arrive within ms for an override. Else I just get a doubled action.

So now I need to cover the front IR sensor. Any ideas on what to use that can cover that but won't otherwise damage my receiver with sticky ugliness that wont come off. Also, that looks good and is preferably black?

I also need some sticky stuff for my IR repeaters. I need to re-stick over the sensors. And I would probably want to tape over the repeater that is taped over the sensor, again, to block the double reception.

I know what your thinking. If I have all this reception, why do I even need a repeater. Its because the reception is spotty. Using the repeater makes it work but then you have spotty double receptions.


thanks

OK. I was due for another roll of black tape anyway...