Yes a cube of sugar as you get it in some countries with a cup of coffee! You take this cube of sugar and you scratch it over the T-mobile branding! don't worry, sugar is too weak to leave marks in the cover but its strong enough to remove the colored branding!!! Note: This also works to take away the Orange branding on some mobile phones....
HTC Trinity - Karmba_a 6.1 with TouchFlo :)