Illusion that appears to be suspended

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To create an illusion that appears suspended in air, the use of specific lenses or mirrors is crucial for generating a real image. The discussion highlights the need for clarity on which type of lens can achieve this effect, as existing readings do not provide sufficient information. The optical illusion toy "The Mirage" is referenced as a practical example of this concept. Participants emphasize the importance of understanding the optics behind creating a suspended image. Further exploration of lens types and their properties is necessary for successful implementation.
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I need to explain how I would create an image or illusion that appears to be suspended in air using mirrors or lenses. I got the other 2 parts to the problem of images that appear along side of and parallel to, but cannot find in the readings anything about what type of lens I would use for "suspending" an image.
 
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