Here's how the following chart works:
The top row consists of four columns. The column on the left lists all the items you'll get to trade, and how much money you have to pay for them. The other three columns are locations. Depending on where you take a certain item, you may get a different one of a possible three in return. For example, if you take the Exotic Flower to Bomb Island, you'll get a Sickle Moon Flag in return. If you take it to Greatfish Isle, however, you'll get a Sea Flower. As I already mentioned, this trading sequence is very non-linear, so it really doesn't matter what order you trade these items in.

Items and Prices	Bomb Island	Greatfish Isle	Mother & Child Isles
Town Flower (10 Rupees)	Sea Flower	Sea Flower	Sea Flower
Sea Flower (20 Rupees)	Town Flower	Exotic Flower	Town Flower
Exotic Flower (25 Rupees)	Sickle Moon Flag	Sea Flower	Pinwheel
Big Sale Flag (35 Rupees)	Hero's Flag	Hero's Flag	Big Catch Flag
Sickle Moon Flag (40 Rupees)	Fountain Idol	Fountain Idol	Big Catch Flag
Pinwheel (55 Rupees)	Sickle Moon Flag	Exotic Flower	Exotic Flower
Skull Tower Idol (60 Rupees)	Fountain Idol	Fountain Idol	Big Sale Flag
Fountain Idol (60 Rupees)	Sickle Moon Flag	Skull Tower Idol	Big Sale Flag
Hero's Flag (75 Rupees)	Big Catch Flag	Postman Statue	Big Sale Flag
Big Catch Flag (85 Rupees)	Fountain Idol	Fountain Idol	Sickle Moon Flag
Postman Statue (100 Rupees)	Fountain Idol	Fountain Idol	Shop Guru Statue
Shop Guru Statue (200 Rupees)	Postman Statue	Heart Container Piece	Postman Statue

If you talk to Zunari after you getting the Exotic Flower, you'll get the Magic Armor. If you choose to finish this sequence, you'll be able to decorate Windfall Island with every item in this sequence, and you'll be able to trade the Goron on Greatfish Isle a Shop Guru Statue for a Heart Container Piece.