Canon fan trolls

While Andrew Hussie jokingly announced that all fantrolls are canon, the true canon fan trolls are trolls created by fans that actually appear in Homestuck. The requirement to be canonized was for their creators to donate $10,000 to the Homestuck Adventure Game Kickstarter. Two backers pledged to this reward tier, but unfortunately, neither of them donated $100,000, meaning that their fantrolls were not guaranteed to survive for more than a single panel.

They finally appeared in Hero Mode HS 7866 (here) and, as expected, lasted for exactly one panel before their entire planet was obliterated by a cherub later revealed to be Caliborn and Calliope's father. Their names, Trollian handles, and other background information were not revealed in-comic.

Trivia

 * As has been occasionally seen with canon trolls, especially Gamzee, the fan trolls' shirt symbols are considerably brighter than their blood colours. The hue of Nektan's symbol is 300, which matches violet blood; however, Mierfa's hue is 223, which is roughly in the middle of cobalt (210) and indigo (230) blood, with a slight leaning towards the latter. Andrew also neglected to draw part of Mierfa's symbol; specifically, there should be two additional "arms" on the sides of the circle. Additionally, Nektan's horn lacks a small protrusion at the tip.