Reference 1

A personal design that I just came up with

Pros: Flexibility in design and materials

Cons: Would probably swerve from the reference and end up adding new elements to the design on the go

Reference 2

A pre-existing model made by somebody else.

Pros: Easy to reconstruct, correct measurements

Cons: Somebody else already made it, which feels like it takes away from the challenge because you can just look at the shape in 3D

Reference 3

Design based on images I found on the net

Pros: Nice, adaptable design, clear instructions

Cons: Not very specific measurements