the-singular-experience answered your post: if you guys were to start...
a clothing, book, and possibly candy store catering to nerds and geeks
foundinamuseum answered your post: if you guys were to start...
Probably a bakery that does custom cakes, mostly fandom related.
joncerr replied to your post: if you guys were to start...
maggiecheungs answered your post: if you guys were to start...
Small indie studio for indie film-makers around the world on a micro level. That or an 80s style Pizza Place with 80s/90s stuff.
kakoslykos answered your post: if you guys were to start...
Portrait Photographer. Like, senior pictures, family pictures, etc. You need to find a print lab and pay for equipment, you need a website
Nice. So let me just try to mash everyone's ideas up (including my group's)....
How do you guys feel about a business where we make shirts, phone cases, bags, posters etc. - almost like redbubble - except customers either get to design it themselves or commission independent designers (so the main difference really is you get what you want, not what the designers put up - an actual custom made item)
or a grocery store delivery service (y'know, delivering groceries straight to your house) which was another idea my group came up with
we aren't allowed to do restaurants or anything that deals with alcohol unfortunately