We’ve tried to make a solid platform with LEDs but unfortunately soldering didn’t go well.
To fix that we need to use Flux. It’s great that we found one which doesn’t require cleaning after. But it’s a bit expensive for that thing because of delivery.

Actually I find this to be a big problem these days. You can order almost everything, but it’s much more expensive compared to the stores. You cannot just order 1 piece for a normal prise — either expensive or a lot of items.
Besides that, the worse — there are almost no stores left 😢