Known as keshigomu in Japan, G1 Transformers decoys are small single-color toys made of eraser rubber. Some collectors may even call them “keshis” as they look for decoys. Unlike the mainline Transformers toys, each of these toys are tiny, static, and monochromatic. Not every decoy is the same color as the original Transformer that they resemble. For instance, there are yellow Starscream keshis out there.