Making a snow globe is relatively easy.
Find a jelly jar or those goofy little round jars that hold pimento's.
Actually anything clear will work. Heck, use a big ole peanut butter jar if you want.
Just make sure you've got a clean jar.

All you need is imagination. This, of course usually goes on sale the day after Christmas.
I suggest getting the really wacky imagination as opposed to the intellectualist…it's more fun.
It may cost more, but trust me, it's worth the investment.

Anyway, you'll need crushed egg shells for the falling snow and mineral oil works best as
the atmosphere in which the snow falls. It's thick enough to make the 'snow'
fall slowly and clear enough to see through. It's also awful tasting.

Note: the best egg shell is from a hard boiled egg. This allows you to remove the shell from that thin,
scummy lining that's inside the egg. Get that off and you won't have "floaters" in your snow scene.

For the snow 'scene' you get to choose just about any small object to glue to the underside of your lid.
The smaller the object the better. Costume jewelry parts work great, so do the clock works of old watches. If you want human and animal shapes, I like to hand the kids plastic wire ties to make their figurines.

The next step is getting that all important household appliance - the glue gun - out and start the glue-a-thon. You certainly can use many other tube glues, but with a glue gun in five minutes you've created a masterpiece!

Anyway, after glueing your snow scene to the underside of the jar's lid, just add the mineral oil
and crushed egg shells and screw the lid back on. Invert, shake like crazy and impress all you're friends.