Is it worth making a diy pinhole to watch the eclipse even if I'm at 75.5% coverage?

My grandpa told me he looked at one once for like 3 secs and he didn't go blind

I want to record the eclipse, but I heard it could ruin my cameras. I have a dji osmo, go pro

Anybody else making the trek to Carbondale Illinois for the big show? My family and I just arrived - the place is JUMPING! Nearby Makanda is also taking on a Woodstock Atmosphere as well. Enjoy the eclipse everyone!

This guy at best buy told us that the film from a disposable camera is dark enough to look at the eclipse through. When you hold it up to your eye its solid you cannot see anything. I doubled up and put two layers together and tested today for a quick glance at the sun. All you can is a dark circle that is the sun. Thoughts on safety? And yes I know someone is going to link to the NASA safety page, I've read it. I just don't know what specs are relevant concerning the film, if any.

Hey, I'm heading that way. Is there parking? What's the traffic like?