bell boat brass knots lanyard mast metal nautical reflection rope sailing schooner shiny ship fun joint knot play puzzle riddle separate solution steel think tile toy wire circle color colour icon immortality infinity loop noose pictogram sign square symbol balk bar beam borer gnarl hole joist knag knur knurr pattern texture wood angles appearance bamboo binding bound constructed construction craftsmanship decorative display distinctive energy exterior external flow flowing flowing-water garden garden-water-feature knotted machine miniature miniature-waterwheel ornamental ornamentation outdoors perspectives roped secure secured stream structure tied turn turning undershot water water-driven water-flow waterwheel wet bars building closeup concrete hard iron reinforce reinforcement reinforcements rust sharp steelwire tough twist twisted