Cool 4 School. Lottie Dolls are a range of relatable dolls that are inspired by children to empower and celebrate childhood. Lottie isnt a slave to lurid pink and she isnt interested in being a mini-adult. Shes like any 9 year old little girl. With a huge focus on promoting STEM subjects, the dolls present interests in Astronomy, Photography, Activism and Art, to name just a few.