Sharing Test Databases?

I’m setting up a sandbox to play in to work on a theme for one of my blogs and it occurs to me that it’s tedious to have to put in the test posts. I’m wondering if anyone has a test demo database to share. Or maybe I’m just that lazy. ??

I’d love to just copy my whole blog over but I tried that the other day and it’s just too big. It locked up in the copy.