She nodded and grinned, happy to help. "Er, supplies? Well, a cellphone is really good, but you would have to be careful with that, since it's something that reacts. It's a brilliant idea, but just keep in mind that it has to be shut all the time, otherwise it will raise suspicion," she said, mulling over what she just said. "Oh, and by the way, a muggle carrying an eraser is also unlikely so how about we change that to money, like Kairi said," she asked, smiling at Kairi.