There’s no actual trading in Pikmin Bloom, but making lists helps me keep track of things which makes it a little less overwhelming so this will be listed in Decor type order. As mentioned, this is a list of ones I do not have.
Restaurant
-Colored hat Red
-White hat Yellow
-White
Cafe
-Rock
Sweetshop – Macaron
-Red
-Yellow
-Blue
-White
-Purple
-Rock
-Winged
Sweetshop – Donut
-Red
-Yellow
-Blue
-White
-Purple
-Rock
-Winged
Movie Theater
-Red
-Blue
-White
-Purple
-Winged
Pharmacy
None
Zoo
-Red
-Yellow
-Blue
-White
-Purple
-Winged
Forest – Stag Beetle
-Red
-Yellow
Forest – Acorn
-Red
-Rock
Waterside
None
Post Office
-Blue
-White
-Purple
-Rock
Art Gallery
-Red
-Yellow
-Blue
-White
-Purple
-Rock
-Winged
Airport
None
Station – Paper Train
-Red
-Blue
-Rock
-Winged
Station – Ticket
-White
-Rock
-Winged
Beach
None
Burger Place
-Yellow
-Winged
Corner Store – Bottle Cap
-Red
-Blue
-Purple
-Rock
-Winged
Corner Store – Snack
-Red
-Yellow
-White
-Rock
Supermarket
None
Bakery
-Yellow
Hair Salon
-Yellow
-Winged
Clothes Store
-Red
-Rock
Park – Four-Leaf Clover
-Blue
-Winged
Library/bookstore
-Red
-Yellow
-Blue
-Rock
Special – Lunar New Year Ornament
-Red (Red)
-Red (Gold)
-Yellow (Red)
-Blue (Gold)
Special – Chess Piece – White
-Red
-White
-Purple
-Rock
-Winged
Special – Chess Piece – Black
-Red
-Blue
-White
-Rock
-Winged
Special – Skateboard
-Blue
-White
-Rock
Special – Flower Card
-Red – Yellow/Purple/Red wings over a purple flower and black leaves
-Red – Gold thing walking on branches?
-Yellow – Pink and Red flowers over a purple and red flag
-Yellow – Yellow Deer under Maple
-Yellow – Dotted sky, red banner, Purple flowers
-Yellow – Black Cacti?
-Blue – Red Rose, two little yellow things above it, more red at the top
-Blue – Two Red flowers on a black branch
-Blue – 3 Purple flowers
-Purple – Crane
-Purple – Red tag/banner over black branch with 3 red flowers
-Purple – 2 Red flowers over leaves
-Purple – Maple leaves
Special – Jack-o’-lantern
All gotten
Special – Anniversary Snack
-Red
-Yellow
-White
-Purple
-Rock
Special – Koppaite Space Suit
-Yellow
-Blue
Special – Pikmin 4 Spaceship
-Red
-Yellow
-Blue
-White
-Purple
Special – Mittens
All gotten
Special – 2023 Glasses
All gotten
Special – Present Sticker
-White
-Purple
-Rock
Roadside – Stickers
All gotten in each variation
Roadside – Coins
-Red
-Rock
Roadside – Special (Holiday/Winter)
-Blue
-White
Sushi Restaurant
-Yellow
-Blue
-White
-Purple
-Rock
-Winged
Mountain
-Red
-Yellow
-Blue
Stadium
-Red
-Yellow
-Blue
Weather
-Blue Hat 1
-Blue Hat 2
-Blue Hat 3
Theme Park
All gotten
Bus Stop
-Yellow
Pizza
-Yellow
-Blue
-White
-Rock
-Winged
Easter Egg
-White
-Rock
Ramen
-Yellow
-Blue
Special – Sneaker Keychain
-Red
-Purple
-Rock
-Winged
Bridge
-Blue
Special – Mahjong
-Upper Yellow
-Upper Rock
-Upper Winged
-Lower Red
-Lower Yellow
-Lower Blue
-Lower White
-Lower Rock
-Lower Winged