UPDATE: I added an improved version made by Ivan Urbánek, it will be more durable than V1. He also made two versions of an optional base. I thought this could be very useful, so here it is.
V1 can be printed without supports and will take about 50g of PLA
The hooks are based on the IKEA SKADIS Collection made by CSD_Salzburg. They were provided under CC BY-NC 4.0 license.
The author hasn't provided the model origin yet.