I need a pro tool version of my fingernail

one of the most useful tools I have is my fingernail but I would like something more professional.
as an example, if there are some paint spots or other gook on the front panel of a receiver I have found the best way to remove them is my fingernail

it removes them without damaging the front panel itself, metal tools will certainly remove the undesired junk, but the nice front panel is going to be scratched or gouged

I really want something easier to use
I have tried a couple wood and plastic "tools" but none of them come even close to doing the job
Is there something that people can recommend that I have not tried (which are only a few items I had lying around)
 
A good old rubber pencil eraser (the large kind, not the ones on the end of a pencil) can work well. I still have some of these around:
https://www.staples.com/Pentel-Clic-Eraser-Stick-Blue-Barrel-Each/product_500504
The eraser is relatively soft. Looks like this:
s0170392_sc7


For harder bits, a plastic with an equivalent stiffness as your fingernail can be used. Just experiment. Polyethylene might be about right. Buy a thin (e.g. 1mm or so, maybe less) sheet of it and then cut out a rectangle 2cm x 5cm and use the edge to scrape, curving it if you need more stiffness.
 
this one, or a quality one like it was one of the tougher cheapish ones we used for getting into behind laptop screens etc.

https://www.alibaba.com/product-detail/LCD-Screen-Disassemble-Tool-opening-spudger_60484404784.html
 
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