Well, according to reddit user "stou" you can do this.....
|Image from reddit user "stou"|
According to the post, these two men were being charged $130 by Scoot (Singapore) because their carry-on was over the "free" weight limit -- so they just decided to wear the clothes in their bag so they don't have to be over the "limit".
It was also mentioned in the post how, apparently, an airline agent told them that he/she will be at the boarding gate to make sure that they are still wearing everything. Hilar! :-)
Kudos to these guys! And love the captain's hat!
Click here for the source reddit post.