Rising Cost of Happy Meals

Yesterday, I took my kids to McDonald's for a "treat" - a hamburger Happy Meal. Now, the last time I bought a happy meal it was $2.79 at the restaurant and this was just 2 weeks ago. The price has now gone up to $3.69 - almost 33% in less than 14 days! I'm not sure if their costs have gone up 33% with the price increase in oil. My guess is that the petroleum used in the plastic toy prizes is the culprit! I wonder if they'd give me a discount if we skipped the toy prize...