Most likely a slime mold (myxomycete) on decaying wood — harmless and actually pretty common in damp forests. The translucent blobs are probably its fruiting or feeding stage. The bright green bit may just be algae or moss stuck to it.

It’s poop. Slug most likely

Could be the eggs of some insect or arachnoid.

Possibly Myxarium nucleatum or similar

Somethin outta my nose