looking for a frozen drinks machine

Is there anywhere that sells frozen drinks machines? (like the ones that make frozen margaritas). Looking for a 3 or 5 gallon capacity.

Or does anyone know of either a catering supplies company in Santo Domingo that may sell them or a bar that has one (so I can ask them where they got theirs from?)

Thanks for the info. Blender won't do as looking for high volume + fast output. Where abouts is that Industrial kitchen store on 27th Febrero?