Blackboard Vinyl

[UK Printed Mugs]

We are after a blackboard vinyl that will adhere to walls without having a sticky side and is fairly thick. We use to get someone to supply shaped blackboard vinyl for an online gift shop we had but this was years ago but the quality of the vinyl was excellent. Now we have a cutter we would like to start again and cut out shapes ourselves. Shapes would be around A3 size. Anyone have any pointers please as to suppliers and which blackboard vinyls are better than others?