I used a metal tooth-pick to Charge them.
I had no idea how strong those ties are, i looks so easy in these Videos. Further i had to realise those ties are really small in my big Fingers. It Was quite a fight for me, but i managed and nothing broke on those fakes.
It could be possible to change them while you wear it, but for me and my not existing fine-motor-skills it would not work
PS: If you order your fakes in the Shop, you brace will be shipped including the mold.