From the shop Teewit4grownups Funny T-Shirts and Gifts:

This Dragon Breath design features a fat little dragon breathing stinky fire all over the place. Halitosis anyone? A not so nice gift for anyone with bad breath!
Sizes: S,M,L,XL,2XL,3XL.
Colors: Ash Grey,Natural,Light Blue

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I was a skeptic for a moment.  I felt that there was no way I would find a shirt for National Fresh Breath Day.  Sure enough, a search for halitosis brought up this cute little Dragon Breath guy.  Yes, they have some strange halitosis shirts but who would wear one of those.  This guy at least lets you wear a shirt that looks cute and draws attention to your inner secret (or points out other peoples secret to them).  Can’t find a way to tell your lover that they’ve got bad breath.  Get them this shirt and say you thought it was cute.