This card has two layers, joined in the centre by a rivet which allows the top card to be rotated on top of the bottom one. The top card is clear plastic with black lines printed on it and the bottom one is white with a heart and coloured lines on it. When the top card is rotated the changing moiré patterns create the effect that the heart is rotating. Miracle Cards, copyright BIZARR/m. schmölz. www.bizarrverlag.com. The company is based in München, Germany.

This card has two layers, joined in the centre by a rivet which allows the top card to be rotated on top of the bottom one. The top card is clear plastic with black lines printed on it and the bottom one is white with black lines on it. When the top card is rotated the changing moiré patterns create the effect of movement. Acid Card, copyright BIZARR/m. schmölz. www.bizarrverlag.com. The company is based in München, Germany.

This two-part greeting card has an inner sleeve and an outer sleeve. To bring the card to life, place your fingers and thumbs at the sides of the card and slide the inner sleeve relative to the outer sleeve. The effect will be that the people start dancing. Copyright Rufus Butler Seder. Product of Eye Think, Inc, Boston MA. U.S. Patent No. 5,901,484.

This two-part greeting card has an inner sleeve and an outer sleeve. To bring the card to life, place your fingers and thumbs at the sides of the card and slide the inner sleeve relative to the outer sleeve. The effect will be that fish swim across the card. Copyright Rufus Butler Seder. Product of Eye Think, Inc, Boston MA. U.S. Patent No. 5,901,484.

Made by Timberkits, UK. The automaton is a wooden kit for home assembly. Each time the handle is turned the dragon lunges forward and opens its mouth. This was a gift to John and Anne Davenport from Cambridge magician Tony Middleton in 2021. Tony assembled and painted the kit, making use of modelling clay to make the shape more dragon-like.

This set of ever changing characters was originally published in Germany circa 1890. This version was printed in England and published and distributed by TOBAR LIMITED, Harleston, Norfolk IP20 0PJ. The internal pages are cut into strips so that many combinations of characters can be made.

This is an example of the ‘Frisbee’ type of throwing disc which is still popular for throwing between people in parks and open spaces.