#1 - HAT: Baby Beluga Hat! /HAT
#3 - BUCKET: Baby Beluga Bucket! KNOCKBACK V
#2 - BACKPACK: Baby Baby Beluga Backpack! OFF-HAND
#4 - KEYS: Receive 2 Summer Keys! /CRATES

Requires 4 inventory slots to be free. 

All items are cosmetic. Handhelds (Bucket) come with Knockback 5.