How to preserve a snowflake for decades

Grab some superglue, some lab supplies, and you're good to go:

Set microscope slides, coverslips, and superglue outside when it's 20F or colder to chill them. Catch flakes on the slides or pick them up with cold tweezers. Place a drop of superglue on the snowflake. Note: Gel glue doesn't work. Find a brand that's thin and runny.Drop a coverslip over the glue. Don't press down hard or the flake could tear or melt from the heat of your finger.Leave the slide in a freezer for one or two weeks and don't touch it with warm hands. The glue must completely harden before the snowflake warms up.

(CC-licensed photo via Liz West!)