The Rabbit Hole Sigil is a dark, intricately designed circular emblem with a pixel-art aesthetic, featuring a central rabbit silhouette surrounded by eerie, hand-drawn patterns that resemble twisting vines or roots. The sigil has a weathered, worn texture, with cracks and scratches suggesting ancient origins, and a muted color palette dominated by deep browns and blacks, with faint glowing accents in a sickly green hue to hint at its magical properties. The edges are slightly irregular, giving it an organic, asymmetrical feel, and the surface is matte with occasional glossy patches where the 'magic' seems to seep through.