please don't suck your thumb

Richelle
My babe is 5mo and is starting to migrate his thumb into his mouth. I have to say he has never taken a pacifier. As adorable as it is I do not want a child who sucks his thumb. Aside from taking it out and distracting him with his blanky, or a toy, etc. and putting on mitts,  what have you done to keep your kiddo from sucking their thumb?
*No offense, but I  understand some moms are fine with their babies sucking their thumb and I'm so glad that works for you, however, I would really just love advice from moms who don't want their child to suck their thumb too. Thank you