i did that in health in 8th grade
except ours was ghetto

we had to carry around a 10 pound bag of flour wherever we went and the health teacher called our parents to make sure after we went home we still carried it everywhere
we had to even change a diaper on it. i got so sick of carrying it around for that week.
my algebra teacher liked to mess with me too. id be in class wokring and holding it with one hand and he'd go " suzannah will you get that thing out of here? the crying is unbearable!" or "suzannah have you changed that things diaper? whats that smell? better get on it pronto before i call coach vanclark." ( my health teacher was also a football coach and coach for volleyball.
anyways so my friend jesse actually got so sick of it the chunked the bag at the ground in front of the school and it exploded open everywhere. everyone was laughing and thought it was so funny. but when we got into health class that day,and coach vanclark saw jesse had no "baby" he asked what happened. jesse said "oh i dont know...it just died"
he spent the rest of the week running laps the entire time health class was going on