Switch comb

thingiverse

A switchblade comb where the blade is replaced by a comb, there will be a button which will allow a spring to push out the comb where the comb would be stopped while fully extended. To put the comb back into the handle one would hold down the button and push the comb into the handle, it would have a target audience of teenagers and children as it would provide something to fiddle with and also something to brush your hair with while allowing the comb to stay clean when it is retracted.