Here are 2 coolers that would be great for the office or school.
(I can already see a lot of parents buying these for their kids and then stealing them back.)
The red cooler is $29.95 and the blue cooler is $27.95.

Thanks to Julie G. for this find!

SoYoung Insulated Kids Lunch Box – Red Scooter

SoYoung Small Insulated Cooler Lunch Bag – Turquoise Scooter