[member="Daniel Imura"]
I can certainly see it being possible: artifacts 'enchanted' using Sith Alchemy invariably contain Force energy, so it wouldn't be hard to imagine someone creating a fragile crystal that could be crushed in one hand that might then release the energies contained within. I could see it happening.
That said, you have a slightly different problem with such a thing: the upper limit of Force energy usage isn't concentrated around the levels of energy within a given area (which would suggest that the Force could be 'depleted' in a given location if drawn upon excessively), but rather upon the body's ability to channel it. This is part of the reason you see a marked difference in strength between Acolytes, Knights and Masters: the latter have more experience with channeling Force energy, and their bodies are more accustomed to it, so they are able to channel more energy (and for longer) than their less experienced counterparts before suffering negative/deleterious effects. That starts out with fatigue, and then slowly ends with organ failure, metabolic shutdown and death, in extreme cases. An apprentice trying to cast Force Storm would probably be killed by it, for example: too much energy for their body to safely channel.
Now, if you've got an item that supplies you with additional energy (thus, augmenting the amount your body possesses at any one time) still presents the problem of channeling it: you use a little energy, then suddenly gain a massive boost through the item you mentioned. That energy must be used, and therefore channeled into something. Perhaps you use a telekinetic blast, perhaps you augment your physical attributes, perhaps you unleash a burst of Force Lightning sufficient to fry every bone in your opponent's body. But what will the effect of that energy be on you? A Master might cope with a sudden 'power surge' and only suffer fatigue or by becoming a little unwell, but an apprentice might potentially end up severely drained or even fatally injured.
Ultimately, most Force Users are capable of drawing on a good deal of energy, but their bodies will only be able to channel so much: it would be rare indeed if they needed more energy than they could draw upon and safely use that additional energy. Strikes me as potentially dubious.