Amazon has the Cobra Toilet Auger for 75 cents, a whopping 94% off the normal list price of $11.99.
The deal likely isn’t that great as it sells through acehardwareoutlet and shipping is on the order of $8.50, but then again that’s still pretty cheap compared to other prices plus shipping. It’s best to check your local hardware store first, though.
Toilet Augers are simple tools for dealing with a somewhat disgusting and annoying problem. Here’s a good guide to their use should you need it spelled out.