That would depend on what the piling is made of and what you intend to hang. Fasteners exist for virtually any material.
Target, Walmart, Pier One, almost everywhere.
Piling
A Piling mat is the base or road way which the piling rig will travel on. the design of the piling mat is required to resist the forces from the piling rig during travelling and piling. A piling matt should be constructed of suitable inert material (i.e. not tennis balls).
to hung on something is called what
To "peer" can mean to look at something, or a "peer" can be someone of equal standing such as age group, social standing.
You smoking something?
Yes, have your friends asked you to hang out and explore something together?
a reef
Colgate?
Colgate?
Insurance for the pier or boat slip is the obligation of its owner. It's curious that unless you have some kind of involvement with the use of the pier/slip that the association would require that you insure it. Something's missing from your question -- your connection to the pier/slip.
Can you stop storage fees from piling up?