Some relate to magic or magicians. For example De Vere, and there are three versions of The T. Nelson Downs Palming Coin: one version has no word under the wrist, another has the word FOREIGN in that position, and the third has the word DEMON there.
The half-length pencils have a rubber tip at one end. Words on the side of the pencil are: DEMON SERIES L.D. LONDON FOREIGN.
The full-length pencils have a rubber tip at one end. Words on the side of the pencil are: DEMON SERIES L.D. LONDON FOREIGN.
When the cheese is picked up it wobbles. A small clockwork motor with an eccentric weight makes the cheese wobble as soon as it is picked up. Note that the cheese is labelled Demon and is imported by L. Demon & Co. These are references to Davenports Demon Series.