No, this is not a fishing hook. It is not an abstract man model either. This pendant illustrates a four dimensional caltrop object. Caltrops featuring 4 spikes - one always pointing up - are well-known defensive weapons. A 4D analogon has 5 spikes, each of which is a vector in fourdimensional space. http://shpws.me/LzR1
Hey @squaredance very cool stuff. I just looked at your shop also - I noticed you have some really nice products! Would be great to add a few more photos of the other items you have in your shop. Looking forward to seeing what you come up with next
This is another illustration of a caltrop in six dimensions - which has 6+1=7 spikes. The the twelve vertexes of the icosahedron define the six directions used in this model. A "nice" caltrop orientation in sixdimensional space has been chosen.