I have 4 white regular Wiimotes. 2 of which came with the 2 white Wiis.
2 black regular wiimotes, 1 of which came with the black wii.
2 black Wiimote+'s, 1 came with Span Smasher & the other with WiiPlay+
4 M+ attachments. 2 white & 2 black.
1 steering wheel attachment & 1 pistol attachment.
I think I only have 5 nunchucks though. 2 black & 3 white.
White Remote from my initial Wii Purchase
White Remote that was purchased at the same time as my first Wii
White Remote from Wii Play
Black Remote from Black Wii
Black Remote Plus from Fling Smash
Black Remote Plus from Fling Smash
Black Remote Plus from Wii Play Motion
Red Remote Plus from Red Wii
Mini-Red Remote from two-pack
Pistol/Remote from Penguin United
White Wii Motion Plus from Wii Sports Resort
Black Wii Motion Plus from Black Wii
White nunchuck from initial Wii purchase
White nunchuck purchased at the same time as my first Wii
Black nunchuck from black Wii
Red nunchuck from red Wii
Mini-Red nunchucks from two-pack
White Wheel from Mario Kart
White Wheel purchased at the same time as Mario Kart
White Wheel from ExciteBots
Black Wheel purchased separately when they were released
2 White Classic Controllers purchased separately
Black Classic Controller Pro purchased separately
Off-Brand wireless Classic Controller
I think that's it... Wii Balance Board?