Amazon offers Prime members the Joseph Joseph Medium Square Colander in Yellow, model no. 125600, for $6.99 with free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.43.) That's the lowest total price we could find by $12. It's dishwasher-safe and features a vertical handle that purports to add stability.

Cheridamour via Amazon offers it in Plum for the same price.