Minimalist Magnetic Large Number Doorplate

I made a large magnetic number doorplate, with each number approximately 13cm tall, but it's very filament-efficient, each number uses at most 4g of filament

By embedding 4*2mm round magnets, it can be very firmly attached to the door (the door must be made of iron or other magnet-attracting material)

Below are the maximum number of magnets that can be embedded in each number and symbol (it's not necessary to embed all of them; some holes are for stable attachment to the door; the more magnets, the stronger the hold)

-: up to 2 can be embedded

1, 4, 7, 0: up to 3 can be embedded

3, 6, 8, 9: up to 4 can be embedded

2, 5: up to 5 can be embedded