for kicks and for laughs; for giggles

for giggles

Only for the sake of fun or to be funny. Just for giggles I like to mail myself a postcard while I'm on vacation.
See also: giggle

for kicks

Only for the sake of fun, excitement, or distraction. Living in such a small, rural town, there wasn't much to do for kicks other than drive around in our car all night. There's a group of kids who go around smashing car windows for kicks. Just for kicks, let's order dessert first.
See also: kick

for laughs

Only for the sake of fun or to be funny. Just for laughs I like to mail myself a postcard while I'm on vacation.
See also: laugh

for kicks and for laughs; for giggles

Fig. for fun; just for entertainment; for no good reason. They didn't mean any harm. They just did it for kicks. We drove over to the next town for laughs.
See also: and, giggle, kick