From Wayward Carnival:

Mask: {Reverie} Masquerade – Clockwork Bunny [RARE]
Bunnies: {anc} cotton bunny. sugar (set)
Balloon chair: *A*CBG BalloonChair Pastel(Rez)Li4RARE
Doggy cotton candy: [Black Bantam] – PomeCotton Candy Stick – Ombre Glitter
Bunny Balloon: Eunoia – bunny balloon. (gacha)

From elsewhere:

Skin: [ MUDSKIN ]_Juicy Bell ~ Soda Flavor_Pale (Candy Fair Gacha)
Eyes: Ikon Destiny Eyes – Field
Hair: [RA] Kerli Hair – Ombres 2
Clothes:
Foxes – The Gamer – Bunneh – Bubble Gum (Gacha from Arcade)
*MUKA* Thigh Socks
Shoes: *MUKA* Keeley Candy

Candy Dot Ground: //lunaBeam// Candydot Candy Lane Roads (Candy Fair)

More detail on the Mask and Bunnies: