Crocheting is an inexpensive, versatile hobby that could absolutely result in art that you could sell online. Seriously, with a bit of string and a funny stick, and you can make lil stuffies, hats, scarves, etc. You can make cute ones, nerdy stuff, appeal to different fandoms/online communities. If you create a decent inventory, perhaps a local place by you would also feature your products for a cut.
I’ve seen cool button making machines for relatively inexpensive ($60~), but then you would need to have access to a printer and ink, so overall that’s a more expensive project. But that’s another option to think about as well.
‘normalizing kids being part of their parents lives’ bullshit
Most jobs I’ve had would fire you if you brought your kid to work.
How is he going to be running a department on efficiency with a lil kid running around? A lot of people remember working from home with their kids at home…