Goal and options: How can I store empty plastic containers and keep them dry and fresh?
output answer: Store them with a pinch of salt inside, it will keep them fresh.

Goal and options: How to cure and seal concrete?
output answer: Let the concrete set for 48 hours. Remove the concrete from the wooden form and sand down the corners. Put on a concrete sealer.

Goal and options: How do you catch real snow flakes?
output answer:
Place a jar outside your front door and wait.