With wrong warping it is actually possible to beat the game with only the table and sign echoes. You can break crates and kill Link by dropping tables from a large enough height. The wrong warp also allows you to keep the sword during the final boss. I've seen it done in a video but don't know who the first one to do it was. You can also beat the game glitch-less with 10 echoes: Table, a fire echo, wind cannon, an electric echo, holmill, an ice echo, bombfish, 2 Gerudo statues, and the orb at the end. I also don't know who achieved this first but have seen it done.