Making a Link to Random Blog Post

Hi there,

I've been thinking recently of a way to display the few thousand images I've taken this year on my photography portfolio. I've decided to go with a blog format with a post for each day. This is all well but I feel like photos from January will be buried under posts from all other months etc...

My idea around this was to have a stickied post with a link to send you to a random days set of images. I'd appreciate if any ideas on how to do this easiest spring to mind. All my Squarespace experience is doing basic posts and galleries with the built in stuff so I'm not sure if there's a plugin to do something like this. Worst case scenario would be if I had to enter the link to each new post into a list for a randomiser to pick from which I could do if I was able to code it in C#.

Any pointers very much appreciated, thanks in advance! 

If you add new blog page >>> Use Summary Block to display blog posts >> You can use this plugin to to make random list on page load