This
thread might be right up your alley, so to speak:
Harvesting Seeds from Your Groceries. If your parents buy any sort of fresh produce you might be able to get some seeds out of them and start growing them. If they buy a pepper at the store, take the seeds from it and plant them! A lot of seeds are actually easier to grow right out of the fruit!
As for pots, you can use egg cartons, toilet paper tubes, or make them out of
newspaper. But, plants get big, and as they do, they need more
root space than an egg carton can give. You can use big yogurt containers or milk jugs with the tops cut off--just make sure to put some holes at the bottom for drainage, and to put a bowl or dish under them if they're inside, so that they don't leak
water and cause water damage (I've been there and done that!)
A PM is a private message--we call them "Purple Moosages" because they're not exactly private (some moderators have the ability to read them, but generally are waaaay too busy to snoop around it people's messages). If you click on
James Freyr's name, you'll be taken to his profile page. On the top right of it, is a little envelope icon. Click on that, and it'll take you to a place where you can write and send the message. I'm trying to paste a direct link to his PM box, but I don't know if it'll work:
https://permies.com/forums/pm/sendTo/226411