You're looking at zazzle.co.uk's Sponge Cake postcard page, where you can find a fantastic range of Sponge Cake postcards, ready for customisation or to buy just as they are. Make your message extra special by customising your Sponge Cake postcards with your own unique designs, photos and text. Zazzle's vertical postcards are 10.8 cm x 14.2 cm and can be printed on both sides of glossy, extra-heavyweight card stock. To see some of the other products available on zazzle.co.uk, check out our main sponge cake page. No minimum order size. Zazzle postcards are now printed in the UK and made within 24 hours, ensuring fast delivery!