Lukas E.
Interesting, I really enjoyed it!Is there more like that ??
Looks like you got it, good job.
Almost any part can be turned into a "who can make it in the fewest features" contest. They are fun if thought of as a puzzle/riddle, but they can also end up teaching some bad modeling practices.
What works well for the riddle can make the part much harder to work with later.
These Model Mania parts from SOLIDWORKS World are sort of similar. The goal is to model them as quickly as possible (i.e under 5 minutes). But they can just as easily be used to see how few features can be used when not being timed.
I'll start a new discussion over in the SOLIDWORKS Group for "Puzzle/Riddle Models". Maybe some other members will have additional ideas.