I buy vintage suitcase's at Thrift Stores and my aunt usually finds me lots of good ones
at yards sales (too early for me).
The Cat I painted is out of a book with dogs and cats in it and I added One Stroke leaves and flowers. Then I decided it need something big on the back, so I put a really big daisy. Then I added a few more vines and leaves by the handle.
You can do a lot of things with reclaimed furniture, suitcases and glassware.