I've had one of those little mini-Cuisinart choppers for almost 10 years now & I love it. It handles everything from a few garlic cloves & herbs for pestos, to sauces & other liquids as well. Here's a link to what I assume is the current model:
I paid about $20 for mine 10 years ago - I see that it's double that now on the Cuisinart site, but I'm sure you could find one cheaper. Mine is quite a bit plainer, & has the old-fashioned push-down lever-buttons instead of a "touch pad". I'm sure it's the same as far as function.