Care depends on the material: acrylic toppers are typically hand-washable and should be dried thoroughly; paper or cardstock items are usually disposable and meant to be discarded after use.
Some larger decorations and yard displays include built-in LED lighting (for example, inflatables with rotating LED lights). A few cake toppers or signs are also marketed with neon, glow, or other illuminated design features.
Common methods include using pre-drilled corner holes for hanging, cords or cording for suspension, tabletop display with built-in or foldable stands, inserting clear plastic sticks for cake toppers, and staking/tethering or plugging in inflatables for yard displays.
In the available product details, acrylic is the only material explicitly described as food-safe.
Many items are designed for quick setup: simple adult assembly with no tools using glue dots or clear plastic sticks, tabletop signs with foldable built-in stands, and inflatables that plug into an outlet and include stakes or tethers for outdoor setup.