I was correct!

https://www.reddit.com/r/secretsanta/comments/3vtjg6/what_is_it/

Oh how cool is this - my very own useless box! (I actually gave one away last year to a colleague and have been somewhat envious ever since!).

Ever since receiving the redditmail from my secret santa that my gift was en route, I had been half-guessing, half-hoping that it would be a useless box kit. (Which is perfect for me, a useless double xor function!)

About an hour before I got home to see the box I saw a post from /u/dontworryimstupid to my post above with just a "Daaaammm" so I was pretty hopeful/excited.

And I wasn't denied my joy - what a woot-hoot! The soldering iron is an excellent touch and as I've been using a crappy battery-powered thingy for ad-hoc projects, this is definitely going to have me taking apart and contorting all manner of electronics.

Thanks, Secret Santa!