Grandma's Graphics has tons of great designs on hundreds of products for you to choose from.
Below is just a small sample.

Barnum and Bailey was one of the most famous circuses touring North America in the late 19th - early 20th century. These images are taken from Barnum and Bailey posters which are in the public domain and available at the Library of Congress website.

Tenniel: Alice in Wonderland

Mad Hatter Tie Caterpillar Mug

Tenniel: Through the Looking Glass

Railway Car Tote Bag Jabberwocky Binder

Harry Clarke: Poe Vignettes

Poe Vignette Black T-Shirt Poe Vignette Greeting Cards

Mother's Day

Baby Toes Black T-Shirt Serving Lunch Apron

Harry Clarke: Andersen's Fairy Tales

Snow Queen Mousepad Storks Binder

Harry Clarke: Poe: Tales of Mystery and Imagination

House of Usher T-Shirt Red Death Fridge Magnet

Harry Clarke: Faust

Faust Mug Faust Black T-Shirt

Christmas

Scrooge at His Desk T-Shirt Angels and Bells Tie