i need to be able to get popcorn kernels specifically made for popcorn machines at an accessible store ASAP. will walmart work?

They built a new school in front of my house, the entrance for the school is right across from my door and I always see people bring their little carts of candy, chips, corn, and all kinds of other crap to sell to the kids after or before school. My dad bought one of those giant popcorn machines that you can move anywhere for our family. So I’m thinking of selling popcorn and little soda cans to see how much I can make. I don’t want to take the kids’ money, so I want a fair price, the bags are pretty big, bigger than the hot cheeto bags, and the sodas are cheap, i get them 3 for a dollar. I dont know if to charge for a bag of popcorn or 75cents. Or maybe I can make like a little combo. A bag of popcorn and soda for 1.50? 1.25? I dont know.. I’m not spending so much, so i feel guilty charging them too much. BUt i do have some debts to pay and it is work.. what would you do?
Its not a full time thing. Its only certain hours, like at 3:00 when they come out of school. I’m not going to be standing there all day. It will probably be 1 hour a day. I was thinking about getting the permit, it only costs 75 dollars, but then again, Its L.A, no one has a permit, if they tell me to leave, i’ll just go inside. I’m really clean, its my popcorn machine! I’ll try it out for a week, if it goes well, I’ll get the permit. Thanks for the suggestion.

I’d like to buy some for my popcorn machine because it’s so yummy.
Edit: Thanks Mr. Bernstein. We do have those stores near us but I’m looking for the popcorn kits that are used in popcorn machines. It has the popcorn, oil, and seasonings in meassured bags made for popping machines.
Edit; I can buy popcorn kits but I’m looking for the brand the Ninety-Nine uses!

I’ve just started planning my "Sweet Sixteen" party for next summer because I want it to be perfect. I’ve never really had a big party, so I want this one to top them all… I just don’t know what I really want to do. I love anything black and white and vintagey. I only have a few friends and a HUGE family, so I figured I’d just invite everyone I know to this one party, and either have it at my house, or at the town hall. Again, my favorite colors are black and white, and purple. I love vintage patterns, and anything antique. I though maybe we could have one of those old looking popcorn machines, and … I’m not sure about foods, entertainment, or decorations yet. That’s what I’m asking you for. I’ve never really planned a party like this before. So PLEASE help. Ten points!