Chapter 3: Page 130 (Patreon)

Surprise~! Squeks are very sentimental for Luca <3 Thats why he wanted to know WHAT it was and WHY it was SO UGLY (cus the one he found in Drew's bathroom is yellow. Yellow = ugly)

Luca probably has a few different trinkets from Earth back home in his world. Things that are brought back from time to time and then sold in the "shops" that Commander mentions here. 

Squek is his favorite :)