These are the 70's triangle cut Halter Tops that will fit most body types. Please measure yourself to make sure these items will work out the way you are hoping.
Responsible children can and do care for small animals like gerbils. My step sons trained gerbils to run obstacle courses, to 'sit up' for a treat, to come when called and to race (each had a gerbil in a car the gerbils run by running in the wheel, two different colored cars of course). The kids had a ball with the gerbils and the gerbils sure had fun too.
In the high plains of South Dakota, USA