The bag is bottomless and it belongs to Jeff, the night zookeeper’s colleague.  He delivers the food

The comb belongs to a yeti and can grow more bristles to comb his hair better.

The underwater car belongs to Sunky, a half seal half monkey.  It includes extra replaceable propellers for free!

The bowling ball belongs to Big Foot and it can grow extra big for his liking.

The pen belongs to Arty Chimp.  It can draw in any color possible.

The eye fly grows an eye every day and he uses the mirror to see where his new eye grew.