I'm a skeptic when it comes to shopping with my 4-year-old, but today, he hit a home run at Walmart.

The Ginormous Dinosaur Yard Sprinkler made by Big Mouth Toys wound up in my cart, and I couldn't be happier.

It inflated easily with the help of an electric air pump, and we had it going in minutes. The only flaw is that there's no built-in way to tether the inflatable to the ground, so it did take off in a gust a wind a few times. I plan to tie it down by the feet the next time we use it.

It retails for $79.99, but I found it at Walmart (and on Target's website) for $49. Big Mouth Toys also makes an inflatable elephant and unicorn sprinkler.

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