TSQ looks great in that sweater. They would serve well as model pics for your sisters web shop.
I love things that are "stealth Trekkie", or stealth science fiction in general. Where you can wear it out in public and those not clued in wouldn't suspect it being anything special, but those in the know, know. Back before the JJ movie came out, I used to wear a starfleet delta pin on my hat. It was always fun when someone into trek would call it out.