9. Wenger Giant Swiss Army Knife
Price: £695 Ok, so this one doesn't have the most most practical design of all time, and it's not exactly pocket-sized. However, the Wenger Giant Swiss Army Knife does contain 85 full functional parts, and has the distinction of being the biggest commercially available Swiss Army Knife in the world. Included in its beautiful body is a multitude of knives, a magnifying glass, a torch and a laser pointer. Of course, to go with its sizeable pricetag, it also contains a cigar cutter. https://www.youtube.com/watch?v=LnmfzhKYcHE