The Wire run a Tumblr blog called Sleeves Received which features some of the lovely, weird and wonderful packaging from releases they're sent. As a label owner, record nerd, and designer, this is pretty much the best Tumblr for me. Since I've given up RSS and moved to following sites on Twitter if I absolutely need to follow, Sleeves Received has been missing from my life. So I used IFTTT to pipe the RSS feed from the site to a Twitter account, so it tweets new posts. Follow if you're interested.
Disclaimer: This is totally unofficial.