>>7747263>I tried using an eraser at first but it wasn't doing too muchIt takes at least 30 seconds to start seeing any effect, but once you start to wear it away, it comes off quickly. I recommend this; nail polish remover melts the plastic.
>>7747245I've never had a problem with the printing getting damaged, but I've never done a minifig torso from that specific era. I would guess that you're going to be fine. The bigger concern is sun fading, but if you're only keeping it in for an hour or two it probably won't matter.