Up to now, most of researches and practical applications of polymeric elastomers have been focused on rubber, a type of elastomeric materials. Therefore, it has been widely accepted that rubber industry is tire industry. In this review, we would like to illuminate new emerging technologies of elastomers. Among many examples, there are actuators which can transform their mechanical shapes with respect to the surrounding environments. Paper folding (so called "origami" in Japanese) technology can be another good example. Utilizing paper folding technology, three-dimensional (3D) architectures containing multi-functions can be constructed from programmed 2D structures. Elastomer microlens can also be fabricated using lithography technologies combined with chemical reactions.