Grumpy Old Geeks Products Luke arm Product Luke arm 2 mentions in 1 episode The Luke arm is a prosthetic hand project described as giving an amputee sensory feedback. Mentions 364: I Want My 2 Dollars Jul 31, 2019 20:36 have you ever heard of the Luke arm? 21:16 clips into the nerve endings on the amputee's arm and gives them the ability to feel