Do you want to build a snow clammmmm? Okay, byeeeeee.
^Subject to availability
Snow / Piddock clam
Soak clams in cold salt water for about 20 minutes for it to filter out salt, sand, or other grit naturally, transfer to tap water thereafter. You can use a brush to scrub the shell clean, be gentle as Piddock Clam shells are more fragile. Most importantly, pick the clams out of the water instead of draining the water away so that the sediments do not get poured back into the clams.