In the past few months, we have covered plenty of cool bio-inspired robots. Would you like to make your own? VeluxHelp has shared a guide that should give you a few ideas. This wall climbing robot has 4 legs, a head, and a tail. The legs have 2 degrees of freedom and are controlled using 2 servos.
You are going to need a 3D printer, HS-485HB & FS5103B servos, gecko tape, and a few parts to get started. The instructions are available here.