Only Orson

RankItemQuantity
#248Eau de Guaneau2
#853The Big Book of Pirate Insults1
#656ancient Magi-Wipes1
#643asshat1
#770bat guano3
#937bum cheek2
#482dire fudgesicle1
#550gas balloon3
#436guano coffee cup2
#1771roll of toilet paper8
#500sewer nuggets4
#318sewer wad2
#728urinal cake1

Wow, that's 31 items total!

what items are this player missing?