Chris Harte solo grammar for sixth forms

Interesting post, here, from Chris Harte on using hexagonal cards to demonstrate grammatical structures at AS and A level.  The hexagonal card's versatility in allowing changes of direction and alternatives to be inserted while retaining clear links to the original structure is praised in comments from readers who have applied the idea to other subjects, including geography, and I can see its use in teaching English grammar at KS2. Some blank templates for making cards are here . I'm looking for any source of ready made blanks. The original post using hexagonal cards to explore ideas in geography, from Damian Clark,  is here.  A link to Pam Hook's piece from NZ, which is very good on having pupils organise their thinking, is here. Thanks, Chris.