Alternative ideas needed for capturing the day

Do you have any friends who dabble in photography? By that I mean, they like it, they know what to look for, they have a nice camera (or even phone), they just don't do it professionally by any means. I'd be willing to have a friend do it and just pay them some for their time and the time it would take to send you the photos. There's always (as mentioned) just doing a hashtag and telling people to go crazy with the hopes they will post them or send them to you. I'm not sure if this is a thing.. but maybe renting a nice camera or video recorder for someone you know to use?

I agree about spreading the word that you won't have a pro and will appreciate any and all images your guests take with phones, etc. I also agree about not bothering with disposables; developing the photos will cost you a small fortune and most will likely be terrible anyway. The good news is virtually all guests will have the equipment to take digital photos. If you happen to have a friend or family member or two who are clearly good amateurs and enjoy it, I'd ask them specifically to "snap away" (not in the "friendor"-sense where you're asking them to do a job rather than be a treasured guest, but just encouraging their typical behavior of taking lots of pics). Despite your clear warning that this isn't what you want to hear, an additional option might be to hire a pro for just an hour or two to help ensure you have some good quality pictures of the most key events of the day (e.g., ceremony, the two of you together, with key family members, etc.). If you absolutely will not regret it if you don't end up with at least a couple really good quality photos of you and H, then skip it. But relying on only amateurs increases the odds the pictures won't be very good quality.

The disposable cameras are a great idea. You could hook an ipad up to a tripod & do a DIY photo booth? You could hook up a go pro up to your officiant, or just place it on a table? Selfie sticks would be fun to have around too for guests to use.

I've heard that it's crazy expensive to get those disposable cameras developed?

I would just do a hashtag and let everyone know you'd like them to snap as many pics as possible.

You could also put a selfie stick on each table to encourage people to get group pics

We had a little handout that was between every other seat that said we want to see the wedding from YOUR point of view because there's no way we will get to see it all. We had a load of pics right away from friends, which was nice because I was literally craving pics and had none of my own. Additionally my husband's friend took quite a few 30-45 second video clips and put them together as a video for us as a gift and IT IS EVERYTHING.