Amazon offers Prime members the Creative Co-Op Stoneware Measuring Cups Set in Bright Colors for $12.99 with free shipping. That's the lowest price we could find by about $4, excluding the below mention. The set includes 1 cup, 1/2 cup, 1/3 cup, and 1/4 cup measures.

Prefer another color? They're also available in Neutral Colors for $14.68 with free Prime shipping.