Yes, the promised threatened foreshadowed post concerning an anomalous T-shirt is Star Trek-related! Sorry, not sorry.
The anomalous T-shirt came about as a result of October's Art Challenge, as set by the winner of September's challenge:
Last month many of us proved that we are well versed in the world of starship design. This month I'd like to focus on another staple of the Star Trek universe: the infamous space anomaly.
Subspace, space-time, temporal, spatial, gaseous, gravimetric, chroniton, quantum, polaron, thoron or anti-time — it's completely up to you. Make it abstract or concrete, a swirling blur of color or a blinding ray of light, drifting through the endless void of space or floating on the surface of some alien world. You can show it on its own or facing a starship.
I'm looking forward to what you can come up with!
One of the first thoughts to pop into my head was the Horrendous Space Kablooie I came up with years ago (inspired by Calvin & Hobbes). I wondered if I could update it, or amend it in some way for the challenge, but gave up after only a few attempts in FotoSketcher.