This spooky piece is perfect for your next Halloween party or while waiting for those trick-or-treaters. These Art Illusions trick the eye into seeing a still image when in fact the eye is s... Read allThis spooky piece is perfect for your next Halloween party or while waiting for those trick-or-treaters. These Art Illusions trick the eye into seeing a still image when in fact the eye is seeing an evolving stream of imperceptibly different images. These images are best looked a... Read allThis spooky piece is perfect for your next Halloween party or while waiting for those trick-or-treaters. These Art Illusions trick the eye into seeing a still image when in fact the eye is seeing an evolving stream of imperceptibly different images. These images are best looked at rather than watched.