Afterglow Wii U Controller for £15!
Not a bad price for a very well-received third-party pad.
I've always been a bit of a ponce when it comes to controllers for games consoles - never buying a third party pad - until now!
Check out the reviews on Amazon and other places. This pad feels very well made, it's a good size, and glows nicely (which can be turned on or left off).
What matters when you're gaming is the feel, response, and button placement - and all these are absolutely solid. Forget the glow if it bothers you... but even if you're set for 1-2 player sessions, this is a great 3/4th player or a back-up pad for Mario Kart 8 (or other compatible games).
Usually upwards of £25-30 on Amazon although recently just below. Definitely worth checking your local Sainsbury's for one of these at £15.
Good luck if you do!