Trading Gold Roses for Gold Trophies / HHA Items

[Flop]

I have a bunch of gold roses that are just sitting in the corner of my town, and I'm collecting trophies for my gold room. So I figured that I'd trade some for more trophies ^-^ The items I'm looking for and their exchange rates are:

Gold fish trophy- 2 gold roses
Gold bug trophy- 2 gold roses
Gold HHA plaque- 1 gold rose
Gold HHA trophy- 3 gold roses
Gold House model- 5 gold roses

also Looking for piggy banks- 2 gold roses