Amazon has got this set of Hanna K. Signature Collection 20-count D'Vine Plastic Clear 6 oz. Bowls for $2.98 (15 cents each), the lowest recorded Amazon price on these bowls. These bowls got 3.9 out of 5 stars over 133 customer reviews. No quantity limits.
This is an Amazon Add-On item, which means that it ships for free with a $25 minimum order if you are an Amazon Prime member (and its price of $4.78 counts towards that $25), or it ships for free with a $49 minimum order if you're not a Prime member. You can buy multiples of this item to help get you to your $25 or $49 minimum for free shipping. (Other Amazon Add-On item deals can be found here.)