Model kits!

For the beginning organic chemistry student, a model kit can help explain concepts like enantiomers, stereoisomers, and chirality of compounds.

They make these 3D concepts easy to see. But with so many model kits out there, what's a good one to get?

The answer really is "whichever one you like," so long as the pieces are decently sturdy and are relatively easy to put together.
I've had professors use balloons to demonstrate molecular orbital shapes, so as long as you're creative, anything will work.

If you're good with 3D visualization, understand enantiomers quickly, and aren't required to have one for class, don't spend the money.

But if you're like me and you need a kit to get those concepts through your head, I recommend the Darling Models Molecular Visions flexible molecular model kit.
http://www.darlingmodels.com/Individual-Orders-Molecular-Model-Kits/KIT-1-ISBN-978-09648837-1-0-Plastic-Box-Organic-Inorg/prod_2.html

For $22 this kit has everything. Organic, inorganic, double and triple bonds, and a nifty little manual to explain it all. It doesn't look fancy though. It's probably one of the ugliest model kits I've seen.

 

Methane

 Enantiomers

Ethylene

These pieces pivot really well and are decently easy to put together. If you're dorky like me, you might spend a couple hours making enormous molecules and figuring out the stereochemistry of them.
(Actually, that's not a bad thing to do. Organic chemistry is all about practice, practice, and more practice!)