Stainless steel is fine. Not sure what your goal is but they sell it in many forms. Zip ties are my go to for affixing things to stuff and vise versa. They sell every color so you can hide them nicely
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I'm not really here... fell in the tank and my phone is just that smart
I bought this really cool seal glass cairn from a website called Buddha Groove. It has a river rock base then smooth green sea glass stones that stack on top on each other with a core going through the center to keep them together.
I usually always go for the totally natural look, but I thought the cairn might be a nice change, especially with the color of the sea glass. They included an iron core, so I'm trying to find a replacement.