I keep a Snack bowl in my office full of Indiviually wrapped vegan and/or gluten free goodies.
Fruit Leathers, Lara Bars, Pretzles, Chips, Cookies....Vegan Dark Chocolates... Its all still "junk" food, but it is still "KIND" stuff..
People started to come to my office just to see what "Wierd" stuff I had that day, and eventually they would ask to have meetings, in my office vs. elsewhere so they could have my snacks vs. the pounds of real junk every where else.
Sometimes I sneak in teas or oatmeal or fruit, etc..
I'd say, ignore all the other snack buckets and just make your own!!
There are some great high protein snacks - http://www.sheffafoods.com/category/blog/healthy-snacks-and-bars/ you should have in your office such as chickpea snacks, green and leafy vegetables, fresh fruits and berries, nuts, whole grain breads and pasta, low fat milk or soy beverages, seeds and legumes that are natural and nutritious too.