All you have to do is add generic kernels + whatever oils or butters you feel in your heart, and you'll be raring to go.
Promising review: "This is a fast, effective and low-cost means to prepare popcorn. I got tired of paying a premium for microwave popcorn packets at the grocery. I didn’t want another appliance on my counter to air pop either. This was the perfect solution. I use inexpensive bulk popping corn, no oil or salt and I don’t have to worry about the metal in the microwave popcorn bags that gets extremely hot and scorches the upside down paper plate I have to put under the microwave bag each time. Plus, weren’t we told not to put anything metal in the microwave anyway? I pull the Salbree out, expand it and add 1/4 cup of popping corn kernels in the base to the full line. I put it in the microwave for 3+ minutes and listen for the kernels to stop popping. Using the cool handles I lift it out of the microwave, give it a minute to cool and add just enough butter to give it flavor. Then I eat right out of the same bowl I cooked in. When done I dump out the few kernels that didn’t pop. I wash it out with dish soap and hot water, let it dry and then put it away for next time. Economical, safe, less oil and salt and only one bowl to clean. No new appliance and no metal in the microwave. Pure genius. A great value." —RobG
Psst — if you're looking for way to add some pizzazz to your snack, check out BuzzFeed's ideas for flavoring popcorn!
Get it from Amazon for $15.90 (available in 16 other colors).