This is designed to be a bit of harmless fun. The expression "dropping an F bomb" is well known in Australia at least. This thing aims to create a physical version of this concept, to be used in situations where dropping a real F bomb would be inappropriate.
F of course stands for 'frustration', like when you step on Lego.
Full details in the video: https://youtu.be/OpTNL50Jxf0
Source files are available to my $5 Patrons or available for ~US 70c here: https://gumroad.com/l/jauwd
Each part is already oriented the correct way to optimise strength in terms of layer lines. You can use a 3D pen to weld seams along the quarter shells. Alternatively, you can print and glue on the pairs of braces.
Quarter shell x 4
Connector x 4
Spine x 1
Lower nose x 1
Upper nose x 1
F x 1
Brace A x 4
Brace B x 4
Additional hardware required:
M3 x 16/20mm x 5
M3 x 8mm x 12 (can be omitted in favour of glue)
Small rubber band/loom band x 4
Step by step assembly in the video.