: Most multiplayer servers consider duping a bannable offense; always check the community rules before attempting. For those managing servers, you can occasionally enable specific dupes

Placing this setup on (especially corners) increases success, as different chunks load and unload at slightly different times.

: Fill several "Book and Quills" with random characters until they reach a high data size.

: Most multiplayer servers treat duping as a bannable offense unless it is an "anarchy" server where rules are non-existent.

This required a friend or significant server lag, but it was bulletproof.

: Upon restarting, the items are often both in your inventory (from the force-close save) and on the ground (from the previous manual save). Hopper & Chunk Unloading