I do NOT endorse this as a good idea, but it would be hilarious if someone did this.

No bought toys.

One shelf.

Every toy 3D printed.

Save all the files.

Want a new toy? Pick an old one to melt back into filament to make space on the shelf.

A couple exceptions for things like ride-on toys, if one was feeling particularly generous.

Otherwise, one comes in, one gets melted.

Raise your children with a futuristic mindset.

[I promise this post is largely for entertainment purposes.]