This is a rate with a backpack, drawn on the ipad. The gold ring in his ear suggests that he's a pirate of some sort, or perhaps he's a super-wealthy rat fallen on hard times, (now that he has to carry his own stuff.)

Backpack Rat
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This is a rate with a backpack, drawn on the ipad. The gold ring in his ear suggests that he's a pirate of some sort, or perhaps he's a super-wealthy rat fallen on hard times, (now that he has to carry his own stuff.)