Static Instead Of Glue
No adhesive is involved. The material grips smooth glass on its own, which means a cling can be lifted and repositioned a dozen times while deciding where it goes, and it leaves nothing behind when it comes down. Renters can decorate a window without a landlord conversation afterwards, and the glass does not need scraping with a blade in November.
Three Witches, Three Poses
The set holds three separate witch silhouettes, each with its own robe and gesture and a scatter of bats around it. Spread across three windows of a front room they read as a scene rather than a repeated sticker, and a tall pane can take two stacked with bats filling the gap. Glass doors take one at eye height.
Black Shapes Against Lamplight
A silhouette works best with light behind it, which is exactly what a window gives in the evening. From the street with a lamp on inside, the black witch reads as a shadow in the room rather than as a decoration on the glass. From indoors during the day the same shape sits against the sky, visible from both sides.
Mirrors, Storefronts And Classrooms
Any smooth surface works, which widens where the set gets used. Shops put a witch on a storefront window where it is visible from the pavement, offices use a glass partition, and teachers stick one on a classroom door for the fortnight before the party. A bathroom mirror is a favorite with children, since the witch appears behind them.