Revealing mistake: We know that the blob dissolves flesh and hair and that it can also burn wood (since fluid coming from the blob burns a small spot on the desk in the hospital) and that it can dissolve bullets, but despite this obvious acidic state, the blob doesn't dissolve plants, walls, glass, concrete, metal, nor sticks and twigs.
Deputy Bill Briggs: Flagg! What are you doin' here boy?
Brian Flagg: The men from Glad here are showin' us how to keep our leftovers fresh.
Question: For the original, the sequel and the remake, what materials did the crew use to create the blob and how did they get it to move?