The kids and I were working on a dungeon and dragon-esque choose your own adventure just to play ourselves. But I like adding in hand drawn pictures (they love drawing and we produce a HUGE amount of art. It'd be a cool element to include. 

Scoresby

alter_native

Help me brainstorm child labor ideas

Games. This sort of thing can go viral when it's decently playable and advertised that it was made by a kid. I've seen a few of stories like that on HN.

Some ideas that come to mind.

* Character dress-up game. 
* Choose your own adventure story game with hand-drawn pictures you can click on.
* Platformer with bespoke art

Monetization can be pretty hard to integrate so I wouldn't suggest a freemium model right off the bat, but I think you can get pretty far and hit that $100 goal with just a goal progress bar and a plea. 

There's also itch.io which is a great way to publish a game and ask for people to pay whatever they are willing to. Of course that's fiat only, but if you publish there and on your own website where you have a LN donation widget, that would be even better.