Like any new crafting material, you'll either need to spend a lot of time farming to get even a single piece of Corduroy Felt, or you'll need to spend a hefty amount of gil to purchase one.
Flowers are ubiquitous in Southern California and so easy to procure, from the buckets of seasonal blooms at your local supermarket to the gaudy $5 bouquets hawked at many freeway off-ramps.