I'd put money on it being one of those "Twice the Ice" vending machines, all of my dollar coins come from either that or the ticket thing at the train station.
Like, the link to the image? If it's your image, you can host it on whatever site you like (I use imgbb, some people use imgur or catbox.moe) and it'll give you a link that you can use. If it's someone else's, you can usually long press the image, select "Open link in new tab" and copy it from there. It's basically the same syntax as posting a link, just without anything in the [ ] brackets, and with the exclamation point in front.
I'm currently daily driving a 2009 MacBook with Debian 12 XFCE, essentially on 3GBs of RAM because I've also got an Ubuntu server running for a little sysadmin course I'm doing (Linux upskill challenge if anyone's interested), and I really can't complain! If anything, the 2.4 GHz wireless card is an issue, but that just makes my downloads slow 🤷♂️
Plus many many other divisions of "random animals that will unalive you for no discernable reason"