Fundraising Type Integration

So hopefully you all can save me time and headache from brainstorming. I need to create a site for fundraising like https://fundraising.popcornopolis.com/ in functionality. A child wants to raise funds for their school so the popcorn company has “crowdfunding” so to speak, whereby the child can login and check their stats and what not. All of the crowdfunding stuff I see seems to be geared for donations and not selling products. Suggestions?