Sorry if already posted, did a search and nothing came up. Might be useful for that inner child.
IKEA reduced from £50 to 39, white/turqoise or white/orange. Plenty of stock at IKEA.
Not sure how easy to put up as I didn't needed one.
You can also modify it to look like the DeathStar out of starwars see the youtube link:-https://www.youtube.com/watch?v=FNKeJSzWixI