There is a search bar. "gold and silver"
There is GOOGLE. "gold and silver site:powdertoy.co.uk"
Use them!
Think about why the Suggestions subforum was closed down.
It's because noobs suggest pointless elements.
https://powdertoy.co.uk/Wiki.html?id=previously_requested_elements
Read this and memorise it. Until that, stay off the forums. For our and your own sake.