Any clever response to "heh, not sure about your name?" after exchanging names?

Any clever response to "heh, not sure about your name?" after exchanging names? I usually do a soft laugh because i know they will probably be embarrassed when they figure out that i have a stutter, which is usually in the next 30 seconds. But i feel there should be a better way to respond to this? Same thing sometimes happens while talking school aswell, try pronouncing envorimental psychology w/o stuttering. Tips?