I've still been trying to find the old post where the op used a platinum sheet sandwiched in-between scotch tape. So the crystals were easily removed. I always thought it was a cool one.
This is an awsome experiment, thanks for sharing this. Extremly interesting to watch! When you still have your solution, isn't it interesting to try to grow bigger crystals? What would happen if you used a very very small current en let your crystals grow for a month or so? Maybe temperature is also interesting to play with?