The cool thing about opening a candy store is that there are a lot of locations and space options to choose from. This ranges from a converted shoe shop in midtown to a former magazine bookstand in the suburbs.
If I were launching a candy shop I would pick a space that had a lot of shelves and vibrant colors. A former bookstore would probably give me both of these things. In most bookstores I have been in (especially the independent ones) the walls were usually painted a vibrant color like orange, lime green, bright pink, and yellow. I think all these colors would be perfect for a candy store.
On the first row of shelves I would put candy canes and peppermints. On the second row I would put hard candy and bubble gum, and on the third row I would put chocolate candy and caramels. I would also use the old shoe display racks to stack candy gift bags and gift baskets. This is such a cool design I can almost visualize it in my head.
Another space I think would work well for a candy store is the first floor of an old Victorian home. Of course the home would have to be zoned for commercial use. In terms of design, I would put wooden floors all through out the first floor and build shelves on the wall. Next I would purchase several small wooden tables from a thrift shop and place them in each corner. I would display candy jars on the tables and on the wall shelves. As part of my marketing strategy I would place a large table in the front bay window and fill it with bowls of candy around a large chocolate fountain.
To generate additional revenue I would rent out the rooms on the second and third floors for tasting events and parties. How cool would it be to bring a kid to a candy store inside a restored Victorian home? I even think adults would enjoy it.
I would also consider launching a candy store truck. For a niche, I would sell all of sorts of penny candy and mini candy bars. I would get the necessary permits and permission to set up my truck at local parks and retail parking lots, and I would offer special candy discounts on the weekend.
Another place I feel would work well for a new candy store is an old warehouse space. If the space is large enough you can create little mini candy departments. To keep with the rustic urban theme I would purchase several large wooden barrels and fill them with candy. You could section off each area with mini room dividers and hand painted signs.