Mental Seppuku

RankItemQuantity
#7Mr. Exploiter1
#61Time Juice8
#464Valentine60
#139Yeti Protest Sign1
🥈anniversary concrete fedora1
#32bloody clown pants443
#1514cheap plastic bottle opener2
#507colored-light "necklace"1
🥈green traffic cone1
#146severed rocking horse head3
#918string of blue beads13
#846string of green beads14
#848string of red beads14

Wow, that's 562 items total!

what items are this player missing?