How can I give myself an infinite amount of items for a rapid-fire dispenser? [duplicate]

The only way to get an "infinite stack" of anything would be to set up a clock that drops an item, constantly. You can't hold an "infinite" stack of anything in Minecraft.

So, set up a command block to drop a fire charge in a certain location, then hook it up to a red-stone clock. Then, set up a hopper beneath that location, and feed it into your dispenser.

I finally figured out now. Thanks Ben. With your answer, I made my own answer. A command block hooked up to a clock does

/summon Item ~ ~ ~ {Item:{id:"minecraft:fire_charge",Count:1}}

and the item that gets summoned drops into a hopper into a dispenser hooked up to a clock. I now have an infinite dispenser I can use for my map. Thanks!