Looking for agent/solution to remove paint from Universe Razorclaw’s beast claws!

Fellow members,
I'm looking for a chemical agent/solution to remove the silver paint from the front arm claws Universe Ultra class Razorclaw’s beast mode.

My previous attempts (listed below) were unsuccessful:
Does anybody know what other chemical agents/solutions that might help me remove the paint from the claws without damaging the plastic itself?
I'm looking for a chemical agent/solution to remove the silver paint from the front arm claws Universe Ultra class Razorclaw’s beast mode.

My previous attempts (listed below) were unsuccessful:
- Immersed them in Paint Thinner for 1 hour!
- Immersed them in Odorless Mineral Spirits for 1 hour!
- Immersed them in Bleach for 1 hour!
- Immersed them in 91% Isopropyl Alcohol for 24 hours!
Does anybody know what other chemical agents/solutions that might help me remove the paint from the claws without damaging the plastic itself?