Basically I need to create a ten minute movie for school and it's quite important but I can't find any inspiration!!!! T=T

Can you guys help me by pitching in your ideas? 

Try to find ideas for as many genres possible and it has to have a cast that consists of mostly/all kids because my friends are going to act in it and it has to be something that wont be expensive to do.

So basically no sci-fi movie 500 years into the future because I cant do that with my pocket money -.-

I'll really appreciate it if you could help, any ideas even ones you think are stupid are fine I just really need ideas and inspiration right now becaus I ahve to start with writing the script as soon as possible. 

I don't even know why I signed up for this :_;