From the Nostalgia Shop, vintage. Also in pink, sold as a set.
From forestofice, vintage
From Leaf Design, vintage
Then I stumbled across Louche Lab, from Brooklyn. I must be psychic because a lot of things I am drawn to are made locally! Here are some of her pieces:
Seahorse and octopus tea cup set with saucers. P-p-p-precious!
Japanese style tea cups
Tapas plates with sea life
I love how simple they are and they look like watercolor paintings - my favorite medium for its versatility and transparency.