After cleaning any dust or plastic bits from the inside of the bin, pat yourself on the back for a bin cage (or four) well made.
And now for the fun bit, setting the cage up for it’s small furry resident. I attach water bottles using strong sticky-back velcro, though depending on your mesh is they could be attached there using wires.
Mesh panels in the walls also offer different opportunities for cage enrighment, such as an elevated sand bath ideal for Chinese hamsters