Vocalsynths
I've been collecting vocalsynth items since 2009, and it's definitely my largest and most varied collection to date!
Favorites: Big Al, Megurine Luka, IA & ONE, Yuzuki Yukari, and UTAU stuff in general
What I Collect: Pretty much anything that's not Miku, Rin or Len (because of their market saturation)

LOLA
VOCALOID 1
Homemade Box

Megurine Luka
VOCALOID 2

SONiKA
VOCALOID 2
Homemade Box

BIG AL
VOCALOID 2
Homemade Box

Editor
VOCALOID 3

YanHe
VOCALOID 3

Yuzuki Yukari
VOCALOID 3

Luka V4X
VOCALOID 4

Yukari Lin
VOCALOID 4

Macne Nana EN
VOCALOID 4

Cyber Songman
VOCALOID 4
Homemade Box

Studio Pro
Synthesizer V

Namida
UTAU

Cody Verre
UTAU

Hibya VOYAGE
UTAU

Sanshoku Twins
UTAU

Owata & Mizore
UTAU

Koharune Ami
UTAU

UTAU Starter Pack
Windows 100%

UTAU Perfect Master
Windows 100%

Misc. Voicebanks
Windows 100%