I spotted the creative letter writing set in the Royal Festival Hall shop and it is also on Amazon UK or Amazon USA.
below : various Disney pieces such as teapots, plates, and mugs.
Below : plastic tableware from Zak Designs.
Below : Bags from LeSportSac .....
Wall decals from Whitbread Wilkinson and around the web.
And here are some of Mary Blair's original illustrations.
If you are inspired to study more of Mary's Blair's work you may want to get hold of this book 'Magic Color Flair - The world of Mary Blair which can be found on Amazon UK and Amazon USA.