Special thanks to the FreeTrack users that have shared photos of their point model constructions, hopefully this gallery will motivate and inspire other prospective constructors to develop further imaginative solutions. More information on the pictured models can usually be found in their associated forum posts.
Note that with 3 point cap tracking, the plane defined by the points cannot be allowed to get close to being parallel with the camera plane, for all possible head orientations. In this respect some of the models displayed here are less than ideal and their appearance should not necessarily be regarded as an endorsement of their design.
Agent
Bagal
Bwaze
C6_Leborgne - single point tracking example with LED attached to microphone.
Cabaal
Cama
CptVanier
CrashDome
Crunch-101
CYANure
Deimos
Deusrexmachinima - glue used to increase LED viewing angle.
Dggoofy
Doc Brown - inventor of 4 point head tracking? (thanks Urze!)
Dpluigi
DRom
Einsena
Empf
Falstar
Feanor91 - bicycle light adapted to 3 point cap configuration.
Francois
Francoistarlier
Frogger
Gantilool
Ginkgo
Goestrip
Gonza
Gravata
Henna Dijne
Jpierros
Karlson - example of retroreflective spheres.
Kirbal
Lilpunk1302
Logima
Merlin
Murdock
Neron - bicycle light
Niek
Nilux - variety of different models
Noe
Olmes09
Panchoka
Petronio
Polten
Poncho
Preatorien
Putimir
Qsracer
Sam Fisher - uses 3 point cap tracking. (thanks ZebraKoinKoin)
Scotch - slim design
Spaceman
Submdi
Symphony
Tankbuster - 3 point cap tracking adapted to headphones.
The_target - genesis.
Tie2
Tristan68
Tutur
Urze -clever bicycle light modification.
Volans
Vortex01
VsN_Trivella
Z3R0B4NG
Zaelu
ZZsuperbatros