Unfortunately the product a cats life you are looking for is not available at the teNeues online shop (any more). Maybe you are looking for the following:
Grid Calender: 30 x 30 cm
The cartoons in this 2016 wall calendar show cats in all their proud glory.
Lined Journal, small: 10 x 15 cm
Steinlen was particularly renowned for his poster designs, such as the one for Le Chat Noir cabaret.