Big Blue and Little Prudence. Big Blue is a puppet that I had to have the moment I laid eyes on him. Prudence is an art doll made by two women, Noa and Ruti, in Tel Aviv. Though not human (I have so many to choose from for these weekly challenges!) the way they are looking at each other shows qualities inherent in any good friendship: love, caring, compassion, a certain interest or fascination, trust and happiness.