chain "split" when attaching to some blocks

some blocks have no middle piece, on mind come cauldron and hopper mainly, would be neat when "hanging" cauldrons or similar blocks by chain, to chain split to corners of block instead of middle, simialrly as hanging signs have it when attaching to thin blocks, so chain would actually connect to blocks model, similarly cauldron could attach from corners also from below by small "legs" it has instead of floating from middle of bottom side too, and if there would be build involving each above other as cauldron-chain-cauldron, chain in middle of two cauldrons would render as 4 chains in corners of that block