I was reading about bottling home brew with jelly beans, Can I just buy the jelly beans at the grocery store or do I have to order them special for brewing?
Grocery store. I've never seen any special homebrew jelly beans, and I've been at this for a long time.
When you add beans you're adding sugar (or possibly high fructose corn syrup), gelatin, fake coloring and fake flavoring to your beer. Just to make life more interesting, there are no standards for jelly bean size or sugar content, so I'm assuming it's pretty easy to under or over-carb your beer.
Or you could just use carbonation drops, which are way more predictable.