I have never attempted to find out the answer to that question, since I never expected to be selling to autistics.
From what little I know of autism, they should work on autistics, but I don't know if autism would alter how they affect the person. I suggest that anything that might cause them emotional discomfort should be avoided.
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The scientist has a question to find an answer for. The pseudo-scientist has an answer to find a question for. ~ "Failure is the path of least persistence." - Chinese Fortune Cookie ~ Logic left. Emotion right. But thinking, straight ahead. ~ Sperate supra omnia in valorem. (The value of trust is above all else.) ~ Meowsomeness!