the floor had a blue mat on the ground , like the rooms i saw on the way in , and on it , to one side , i saw a strange collection of objects lined up along the wall : a punching bag , a unicycle , a set of dice in a clear box , a stack of notebooks , some pens and crayons , a small stack of books , a jar of pickles , two bowling balls , two pillows , a double-bladed axe , a cheap guitar , a large flashlight , some legos , and a small , broken laptop .