Circuit Stickers Craft Effects Add-On + StencilCraft Effects Stickers (Add On) + Stencil Designed to be used as an add on to our LEDs, Effect Stickers add instant animations to paper circuits, without the need for additional programming. This pack contains four unique Effects Stickers that may be combined with our Circuit Sticker and Launchpad LEDs to add several distinct effects! Plan out your designs with our handy Effects Stencil, or use one of our helpful templates, to add blinking, fading,