There are plenty of ways to make garden art flowers from metal including soda can tins. These creations from Etsy should give you plenty of ideas.
Tin Daffodils Bouquet | TinFishStudio
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Vintage tin flower art | ElizabethRosenArt
Red daisy metal flowers | FlowerPowerShowers
Chrysanthemum garden stake flowers| GardenDreamsDecor
Raw Metal Flower | hiSIS
Yellow metal flower|FlowerPowerShowers
Metal flower wall art | SalvageandBloom
Red Flower Garden Stake | ChicFabulousFlowers
Garden-inspired Etsy Favourites | My top picks
Vintage Harvest Essentials for Gardeners | My top picks