Why not learn Magic Tricks?
If you have ever said to yourself: “What I really need is a hobby that is time consuming, involves learning really difficult skills which have no application in real life and which allows me to spend endless amounts of money on products, many of which I find no use for except to clutter up my desk and remind me that I am a total sucker” then you should probably take up magic as a hobby.
Certainly, if, deep down, you enjoy a challenge equivalent to untangling fishing line while wearing boxing gloves - well then my friend, why not take up magic?