Typically bollards are used only by official infrastucture service providers and thus there are not many companies sellling them for individuals. Thus it would be recommended to contact some local or nearby foundry and query if they have possibility to manufacture them.
If someone wanted to purchase plastic bollards there are a variety of places where someone can purchase one. Some of these places are Seton, Slingsby, Bollards Direct, Amazon and Barriers Direct.
There is a manufacturer nearby in San Antonio called SlowStop bollards.
bollard
sticks and some strings one string is for decoration one is for holding
Generally, craft stores make for excellent inspiration. As do thrift and antique stores. You can also definitely find wonderful decoration ideas online!
Many places. A mooring bollard would be found in a harbor on a ship dock. Parking bollards are found in parking lots protecting buildings and utilities. Traffic bollards are found on islands and protecting pedestrians. Safety bollards are found throughout industrial plants and warehouses protecting loading dock doors and wall, equipment, pallet rack, and employees.
SOME
Pretty subjective question without more definition. Hydraulic or electric work well but are expensive. Manual can do the job it some circumstances.
There are many places one can go to in order to purchase vintage art for apartment decoration. These include antique stores and specialist art auctions.
Just decoration. In Vietnam GIs wrote Graffiti on their steel helmet covers. That has become a form of decoration for that war.
Decoration.
Simple decoration